False. A process with a large negative ∆G does not necessarily mean it will always proceed rapidly. The magnitude of ∆G provides information about the spontaneity of a reaction, but it does not directly indicate the speed or rate of the process.
The rate of a chemical reaction is determined by factors such as the activation energy, temperature, concentration, and presence of catalysts. Even if a reaction has a large negative ∆G, indicating high spontaneity, it may still have a slow rate if the activation energy is high or other factors are limiting.
While a large negative ∆G suggests that the reaction is thermodynamically favorable and will proceed in the forward direction, the rate of the reaction is determined by kinetic factors. Reactions with large negative ∆G values can still be slow if the activation energy is high, requiring sufficient energy input for the reaction to occur. Conversely, reactions with small or even positive ∆G values can proceed rapidly if the activation energy is low and other favorable conditions are met. Therefore, the speed of a reaction is not solely determined by the magnitude of ∆G.
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False,The statement is not entirely accurate. The change in Gibbs free energy (∆G) is a measure of the spontaneity of a process, indicating whether a reaction will proceed in a forward direction.
What is activation energy?
Activation energy can be defined as the threshold energy that must be surpassed for a chemical reaction to take place.. It is the energy barrier that separates the reactants from the products in a chemical reaction.
The statement is false. The sign of the Gibbs free energy change (∆G) alone does not determine the rate or speed of a process. The Gibbs free energy change (∆G) provides information about the spontaneity or direction of a reaction, but it does not directly indicate the rate at which the reaction will occur.
The rate of a reaction is determined by factors such as the activation energy, the presence of catalysts, temperature, concentration, and the reaction mechanism. These factors influence the reaction kinetics, which is the study of the speed and pathway of a reaction.
In some cases, a process with a large negative ∆G can proceed rapidly, especially if the other factors favor a fast reaction. However, it is also possible for a process with a large negative ∆G to occur slowly if the activation energy is high or other factors are not favorable for rapid reaction kinetics.
Therefore, the statement that a process with a large negative ∆G will always proceed rapidly is false.
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How many moles of O2 are needed to prepare 1.00 gram of Ca(NO3)2?
Ca + N2 + 3O2 → Ca(NO3)2
A) 183 moles
B) 366 moles
C) 0.00200 moles
D) 0.0183 moles
Answer:
0.0183 moles are needed
Which statement is true about this fuel cell?
It is self contained like a battery.
It continually needs to be charged.
It has an electrolyte that acts as a salt bridge.
It does not require the input of fuels from an outside source.
The statement which is true about the fuel cell is that It has an electrolyte that acts as a salt bridge.
What is Fuel cell ?A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity.
The fuel cell has an electrolyte that acts as a salt bridge.
As electrolytes are nothing but the salts which are present at the inner side of the U-Tube considered as Salt bridge present in fuel cell.
In this way, Fuel cell has electrolyte that acts as a salt bridge.
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Lulu Labwrecker carefully pipets 25.0 mL of 0.525 M NaOH into a test tube. She places the test tube into a small beaker to keep it from spilling and then pipets 75.0 mL of 0.355 M HCl into another test tube. When Lulu reaches to put this test tube of acid into the beaker along with test tube of base she accidentally knocks the test tubes together hard enough to break them and their respective contents combine in the bottom of the beaker. Is the solution formed from the contents of the two test tubes acidic or basic? What is the pH of the resulting solution?
Answer:
The solution formed is acidic
pH = 0.87
Explanation:
The acid-base reaction of NaOH with HCl is:
NaOH + HCl → NaCl + H₂O
Where 1 mole of NaOH reacts with 1 mole of HCl
In the problem, moles of NaOH and HCl are:
NaOH: 0.0250L × (0.525mol / L) = 0.013125 moles NaOH
HCl: 0.0750 × (0.355mol / L) = 0.026625 moles HCl
As moles of HCl > moles NaOH, HCl is in excess and the solution formed is acidic
Moles in excess of HCl are:
0.026625 moles - 0.013125 moles = 0.0135 moles HCl
As the volume of the solutions is 25.0mL + 75.0mL = 100.0mL = 0.100L, molarity of HCl after reaction is:
0.0135 moles HCl / 0.100L = 0.135M HCl = 0.135M H⁺
As pH is defined as - log [H⁺], pH of the solution is:
pH = -log 0.135M H⁺ = 0.87
pH = 0.87
The pH of the resulting solution of the acid and base mixture is; Acidic with a PH = 0.87
We are given;
Volume of NaOH = 25 mL = 0.025 L
Volume of HCl = 75 mL = 0.075 L
Concentration of NaOH = 0.525 M
Concentration of HCl = 0.355 M
Total volume of solution = 0.025 + 0.075 = 0.1 L
Now, the the equation of the reaction is;
HCl + NaOH = NaCl + H2O
We can see that 1 mole of HCl reacts with 1 mole of NaOH.
Since; number of moles = Volume × concentration
Number of moles of HCl = 0.075 × 0.355
Number of moles of HCl = 0.026625 moles
Similarly;
Number of moles of NaOH = 0.025 × 0.525
Number of moles of NaOH = 0.013125 moles
We can see that the number of moles of HCl is greater than that of NaOH and as such there is excess HCl acid in the mix.
Thus,
Excess moles of HCl acid = 0.026625 - 0.013125
Excess moles of HCl acid = 0.0135 moles
Concentration of this excess HCl is gotten by the formula;
M = Excess moles/total volume
M = 0.0135/0.1
M = 0.135 M
PH of this excess concentration is;
PH = -log [H+]
PH = -log [0.135]
PH = 0.87
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When a vacancy exists in an inner electron shell of an atom (as a result of photoelectric effect, Compton scattering, or bombardment by other electrons), the energy liberated when this vacancy is filled, instead of emerging from the atom as fluorescent radiation, can be transferred to another electron of the atom, thereby ejecting the electron. Such an emitted electron is called a(n) _____ electron
Answer:
The answer is "Auger".
Explanation:
The Auger effect is an effect size when the vacancy of even an atom throughout the inner shell was complemented by the release of even an electron from the same atom. Whenever a central electron is lost, a higher energy level electron can drop into the void and release energy, which can be the result.
5. The fusion equations show the production of atoms of several different elements,
even though each reaction begins with isotopes of hydrogen. Knowing the starting
elements, can one predict what element will form as a result of a given reaction?
Explain why or why not.
Yes, the elements that will be formed in a fusion reaction can be predicted by looking at the combining nuclides.
A nuclear reaction is one in which the nucleus of elements undergo rearrangement to form new nuclei and release energy.
Mass and charge of reactant and product nuclides are conserved in a nuclear reaction.
This implies that we can look at the reactant nuclides and predict the products of the nuclear fusion . This can be done by studying the combining nuclides and taking into cognizance, the balance of mass and charge on both sides of the nuclear reaction equation.
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Answer: Yes it is possible
Explanation: The element that is formed in a fusion can be predicted by looking at the combining elements or nuclides in this case it would be the hydrogen isotopes
Peanut butter is
A.Element
B.Compound
C.Homogeneous mixture
D.Heterogeneous mixture
Peanut butter is a homogenous mixture, because it is made up of many ingredients Therefore, option C is correct.
What do you mean by homogenous mixture ?A mixture is called as homogenous if its constitution is constant throughout. Because the dissolved salt is uniformly spread across the whole salt water sample, the salt water depicted above is homogenous.
Most commonly, homogenous refers to having the same pieces or components throughout. A homogenous mixture has a consistent feature or attribute throughout.
The term "homogenous" can also refer to a group of items that are fundamentally the same or of the same sort.
It is homogenous because it consists of many components adding sugar, salt, vegetable oil, and roasted peanuts.
Thus, option C is correct.
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In your own words, write a definition for the term periodic.
Answer: The definition of periodic is something that is recurring at regular intervals, or happens from time to time. An example of periodic is a person's birthday happening once each year.
hope this helps y❣️
60. What is surface tension, and what conditions must exist
for it to occur?
The higher attraction of liquid particles to one another compared to the molecules within air at liquid-air contacts causes surface tension.
Surface tension being a chemical phenomena brought through a cohesive force, which has electrical energy as its primary source. The total length or the line or the surface region of the film have no bearing on the kind of a liquid's surface tension.
The higher attraction of liquid particles to one another (because to cohesion) compared to the molecules within air itself (due to adhesion) at liquid-air contacts causes surface tension. There are primarily two mechanisms at work.
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14. Ionic compound is brittle solid but break
apart when hit this property is due to...
A) Dissolved in water
B) Arrangement of similar ions
C) Ions do not move
D) Arrangement of opposite ions
Answer:
A
not sure of answer ndhfhfjfjcjfjfj
In the electrolysis of molten magnesium chloride, the overall reaction is: MgCl2(l) → Mg(s) + Cl2(g) (a) Write the half reactions, (b) identify which species is being oxidized and which is being reduced, and (c) calculate the minimum voltage needed to separate magnesium chloride into its elements.
In the electrolysis of molten magnesium chloride;
a. the half reactions are as follows:
Reduction half reaction: Mg²⁺ + 2 e⁻ → Mg (s)
Oxidation half reaction: 2 Cl (aq) → Cl₂ (g)
b. magnesium ion is reduced whereas chloride ion is oxidized.
c The minimum voltage required to separate magnesium chloride into its elements is 386000 C of electricity.
What is electrolysis?Electrolysis is the decomposition of a substance known as an electrolyte when an electric current is passed through a solution or molten form of the substance.
During electrolysis, oxidation and reduction reactions occur that can be split into half equations.
In the electrolysis of molten magnesium chloride, the overall reaction is given below:
MgCl₂ (l) → Mg (s) + Cl₂(g)
a. The half reactions are as follows:
Reduction half reaction: Mg²⁺ + 2 e⁻ → Mg (s)
Oxidation half reaction: 2 Cl (aq) → Cl₂ (g)
b. Based on the half equations given above, the magnesium ion is reduced as it accepts two electrons to become a neutral magnesium atom. Chloride ion is oxidized as two chloride ions lose two electrons to become chlorine gas.
c The minimum voltage required to separate magnesium chloride into its elements is determined from the moles of electrons involved in the reaction.
Magnesium ion and chloride ions require two moles of electrons each to become the neutral element. Thus, 4 moles of electrons are required.
4 moles of electrons = 4 * 96500 C of electricity
4 moles of electrons = 386000 C of electricity.
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Protein A has a binding site for ligand X with a dissociation constant, Kd, of 3.0 x 10-7 M. Protein B has a binding site for ligand X with a K of 4.0 x 10 M. Calculate the K, for each protein.
The breakdown constant, Kd, of the binding site onto protein A for ligand X is 3.0 x 10-7 M. A ligand X binding site on protein B does indeed have a K value 4.0 x 10 M. K has a ratio of 0.133.
Describe protein.Protein, which is located in practically every cell, muscle, other body part, encompassing muscle, osteoporosis, skin, and hair, makes up the human body. It helps to produce enzymes, which power countless phase changes, and haemoglobin, which carries oxygen in the blood.
Protein A kd = 3.0 x 10⁻⁷ M
Protein B kd = 4.0 x 10⁻⁸ M
ka = ?
Protein A ka = 1/kd
= 1/ 3.0 x 10⁻⁷
ka = 0.33 * 10⁷m⁻
Protein B ka = 1/kd
= 1/ 4* 10⁻⁸
= 0.25 * 10⁸
ka = 2.5 * 10⁷ m⁻
ratio of k = 4.0 x 10⁻⁸/3.0 x 10⁻⁷
= 0.133
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A container initially holds 5.67 x 10^-2 mol of propane and has a volume of V1. The volume of the container was increased by adding an additional 2.95 x 10^-2 mol if propane to the container, so that the container has a final volume of 1.93 L. If the temperature and pressure are constant, what was the initial volume of the container?
Answer:
Initial volume of the container (V1) = 1.27 L (Approx)
Explanation:
Given:
Number of mol (n1) = 5.67 x 10⁻²
Number of mol (n2) = (5.67 +2.95) x 10⁻² = 8.62 x 10⁻²
New volume (V2) = 1.93 L
Find:
Initial volume of the container (V1)
Computation:
Using Avogadro's law
V1 / n1 = V2 / n2
V1 / 5.67 x 10⁻² = 1.93 / 8.62 x 10⁻²
V1 = 10.9431 / 8.62
Initial volume of the container (V1) = 1.2695
Initial volume of the container (V1) = 1.27 L (Approx)
Answer: 1.27 L
Explanation:
First, calculate the final number of moles of propane (n2) in the container.
n2 = n1 + nadded = 5.67 × 10^−2 mol + 2.95 × 10^−2 mol = 8.62 × 10^−2 mol
Rearrange Avogadro's law to solve for V1.
V1 = V2 × n1 / n2
Substitute the known values of n1, n2, and V2,
V1 = 1.93 L × 5.67 × 10^−2 mol / 8.62 × 10^−2 mol = 1.27 L
which compound forms 2 parts of hydrogen and 1 part of oxygen?
Answer:
water
for one molecule of water each atom has the atomic mass unit, u,shown.
Explanation:
*can i be the brainliest*
When liquid H2O is chemically separated in a scientific investigation it forms H2 gas and O2 gas. If the number of hydrogen and oxygen molecules does not change through the equation, then the mass will
Select one:
decrease from reactants to products.
stay the same from reactants to products.
increase from products to reactants.
increase from reactants to products.
Which method could you use to
encourage more product, HI, to form
from the reaction below?
51.8kJ + H_{2}(g) +l 2 (g)
We can form more HI by increasing the temperature.
What is the endothermic reaction?An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, typically in the form of heat. This means that the energy of the reactants is lower than the energy of the products, and the reaction requires an input of energy to proceed.
In an endothermic reaction, the temperature of the surroundings usually decreases because energy is being taken in from the environment. For example, when ice melts, the process is endothermic because the ice absorbs heat from its surroundings, causing the temperature to drop.
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Answer:Remove HI gas
Explanation:Acellus confirmed
What is the name of N4O10?
Answer:
nitric acid anhydride
OR
Dinitrogen pentaoxide
The name of N4O10 is Tetranitrogen decaoxide.
In order to name this compound, we have to consider the number of atoms of each element in the compound.
Looking at the compound, we can see that there are four nitrogen and ten oxygen atoms. Nitrogen is an element in group 15 of the periodic table and has five valence electrons. Oxygen is an element in group 16 of the periodic table and has six valence electrons. These two elements combine to give tetranitrogen decaoxide (N4O10).
Hence, the accurate name of the compound is tetranitrogen decaoxide.
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Which of the following correctly describes a compound?
A. The atoms are chemically bonded together, and they retain their individual physical and chemical properties.
B.The atoms are not chemically bonded, and there is no set ratio for how the atoms can combine together.
C. The atoms can only combine in fixed ratios, and they can only be separated by a chemical change.
D. The atoms do not retain their individual chemical properties, and they can be separated by physical means.
Answer:
according to me its c part which is correct
A solute is most likely to be highly soluble in a solvent if the solute is and the solvent is (a) ionic or polar, polar (e) ionic or polar, non-polar (b) non-polar, ionic (d) non-polar, pola
A solute is most likely to be highly soluble in a solvent if the solute is polar and the solvent is polar. The correct answer is option a) ionic or polar.
This is because polar solutes interact well with polar solvents due to their similar electronegativity and molecular structure. Polar solutes have a positive and negative end, allowing them to form hydrogen bonds with the polar solvent molecules.
On the other hand, non-polar solutes interact well with non-polar solvents due to their lack of charge and inability to form hydrogen bonds. Ionic solutes have a strong attraction to opposite charges and may not dissolve well in a polar solvent due to their strong intermolecular forces.
Similarly, non-polar solutes will not dissolve well in polar solvents due to their inability to form strong intermolecular forces with the polar solvent molecules. The solubility of a solute depends on the interaction between the solute and solvent molecules, which is influenced by their polarity.
Therefore the correct answer is option a) ionic or polar.
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3. If 12.5 grams of copper are reacted with excess chlorine gas, then 25.4 grams of
copper (II) chloride are produced. Calculate the theoretical yield and the percent
yield. Cu + Cl2 → CuCl2
Answer:
Percent yield = 99.6%
Theoretical yield = 25.5 g
Explanation:
Given data:
Mass of copper = 12.5 g
Mass of copper(II) chloride produced = 25.4 g
Theoretical yield = ?
Percent yield = ?
Solution:
Chemical equation:
Cu + Cl₂ → CuCl₂
Number of moles of copper:
Number of moles = mass/molar mass
Number of moles = 12.5 g / 63.5 g/mol
Number of moles = 0.19 mol
Now we will compare the moles of copper and copper chloride.
Cu : CuCl₂
1 : 1
0.19 : 0.19
Mass of CuCl₂: Theoretical yield
Mass = number of moles × molar mass
Mass = 0.19 mol × 134.45 g/mol
Mass = 25.5 g
Percent yield:
Percent yield = (actual yield / theoretical yield )×100
Percent yield = ( 25.4 g/ 25.5 g) ×100
Percent yield = 99.6%
What is the pH of a substance that has a hydrogen ion concentration of 1.2 x 10^-2 M
Answer:
1.92
Explanation:
In the restaurant where Anna works, each cheeseburger must have two beef patties, four slices of cheese, and one hamburger bun. Which combination of ingredients will Anna need to make 15 cheeseburgers with no leftover ingredients
To make 15 cheeseburgers with no leftover ingredients, Anna will need 30 beef patties, 60 slices of cheese, and 15 hamburger buns.
Since each cheeseburger requires two beef patties, four slices of cheese, and one hamburger bun, we can calculate the total number of ingredients needed. For 15 cheeseburgers, Anna will need 15 multiplied by 2 beef patties, which equals 30 beef patties. Similarly, for 15 cheeseburgers, Anna will need 15 multiplied by 4 slices of cheese, which equals 60 slices of cheese. Lastly, she will need 15 hamburger buns, as each cheeseburger requires one bun.
By using this combination of ingredients, Anna will be able to make exactly 15 cheeseburgers with no leftover ingredients. It is important to ensure that the quantities of ingredients are accurately measured and prepared to maintain consistency and meet the required specifications for each cheeseburger.
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A baseball player makes $15,000,000/year How much do they make in dollars per minute
Answer:
$28.5388
Explanation:
First you need to find the amount of money per day by doing 15,000,000/365
Then find the amount of money per hour by doing 41095.890411/24
Finally you find the amount per minute by doing 1712.32876713/60 to get 28.5388127855.
Round if necessary
___AsCl3+____H2S-->___As2S3+___HCI
Answer:
2 AsCl₃ + 3 H₂S → As₂S₃ + 6 HCl
Explanation:
When we balance a chemical equation, what we are trying to do is to achieve the same number of atoms for each element on both sides of the arrow. On the right of the arrow is where we can find the products, while the reactants are found on the left of the arrow.
We usually balance O and H atoms last.
AsCl₃ + H₂S → As₂S₃ +HCl
reactants
As --- 1
Cl --- 3
H --- 2
S --- 1
products
As --- 2
Cl --- 1
H --- 1
S --- 3
2 AsCl₃ + H₂S → As₂S₃ +HCl
reactants
As --- 2
Cl --- 6
H --- 2
S --- 1
products
As --- 2
Cl --- 1
H --- 1
S --- 3
The number of As atoms is now balanced.
2 AsCl₃ + 3 H₂S → As₂S₃ +HCl
reactants
As --- 2
Cl --- 6
H --- 6
S --- 3
products
As --- 2
Cl --- 1
H --- 1
S --- 3
The number of S atoms is now equal on both sides.
2 AsCl₃ + 3 H₂S → As₂S₃ + 6 HCl
reactants
As --- 2
Cl --- 6
H --- 6
S --- 3
products
As --- 2
Cl --- 6
H --- 6
S --- 3
The equation is now balanced.
solutions that have a pH of 7 are not acidic or basic; they are referred to as ____
describe the relationship between pressure and temperature
It is used in the design of engines, where changes in pressure and temperature are used to convert thermal energy into mechanical work. It is also used in meteorology to predict weather patterns and in the study of the Earth's atmosphere.
Pressure and temperature are two fundamental physical quantities that are closely related in many physical processes. Understanding the relationship between these two quantities is essential in many scientific and engineering fields. This relationship can be described by the ideal gas law, which states that the pressure of an ideal gas is directly proportional to its temperature when the volume and number of particles are constant. In other words, when the temperature of a gas increases, its pressure increases, and vice versa. This can be explained by the kinetic theory of gases, which assumes that gases are made up of a large number of small particles that are in constant motion. The speed of these particles is proportional to the temperature of the gas. As the temperature of the gas increases, the particles move faster and collide more frequently with the walls of the container, resulting in an increase in pressure. Similarly, when the temperature of the gas decreases, the particles move slower and collide less frequently with the walls of the container, resulting in a decrease in pressure. This relationship between pressure and temperature is essential in many scientific and engineering applications.
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if malonyl-coa is synthesized from 14co2 (carbon 14 isotope) and unlabeled acetyl-coa, and the labeled malonate is then used for fatty acid synthesis, the final product (fatty acid) will have radioactive carbon in:
The use of labeled malonyl-CoA in fatty acid synthesis can result in the incorporation of radioactive carbon into the final product, providing a powerful tool for studying lipid metabolism.
If malonyl-CoA is synthesized from 14C-labeled CO2 and unlabeled acetyl-CoA, and the resulting labeled malonyl-CoA is used in fatty acid synthesis, the final product (fatty acid) will contain radioactive carbon. This is because malonyl-CoA is an intermediate in the biosynthesis of fatty acids, and the carbon atoms derived from the labeled malonyl-CoA will be incorporated into the growing fatty acid chain.
During fatty acid synthesis, malonyl-CoA undergoes a series of condensation reactions with acetyl-CoA to form a growing fatty acid chain. Each round of condensation involves the transfer of two carbon units from malonyl-CoA to the growing chain.
The incorporation of labeled carbon into fatty acids can be detected using techniques such as autoradiography or liquid scintillation counting. These techniques allow researchers to track the fate of labeled molecules in biological systems and can provide valuable insights into metabolic pathways and cellular processes.
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How many particles are in 2.50 moles of iron (II) chloride?
Answer:
1.505 × 10²⁴ particlesExplanation:
The number of particles in iron (II) chloride can be found by using the formula
N = n × Lwhere n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
N = 2.5 × 6.02 × 10²³
We have the final answer as
1.505 × 10²⁴ particlesHope this helps you
Experimental
is a factor that can arise from incorrect use
of measuring tools or malfunctioning equipment..
Answer:
Error.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).
Experimental error is a factor that can arise from incorrect use of measuring tools or malfunctioning equipment such as thermometer, barometer, multimeter, voltmeter, ammeter, vernier caliper, etc. This error usually causes test results to be inaccurate, incorrect and as such leading to wrong experimental conclusions.
Also, one common example of an experimental error is the error due to parallax.
which two properties are most important in determining the surface temperature of a planet? group of answer choices size and atmosphere. size and chemical composition. distance from the sun and atmosphere. composition and distance from the sun. internal temperature and atmosphere.
The two properties that are most important in determining the surface temperature of a planet are its chemical composition and distance from the sun. The composition of a planet affects how much solar radiation is absorbed and reflected, which impacts its temperature.
Distance from the sun also plays a crucial role, as planets closer to the sun receive more heat and radiation than those farther away. Other factors such as atmosphere and internal temperature can also influence a planet's surface temperature, but chemical composition and distance from the sun are the most significant.The two properties that are most important in determining the surface temperature of a planet are: distance from the sun and atmosphere. These factors significantly influence a planet's surface temperature, as the distance from the sun affects the amount of solar energy received, and the atmosphere plays a crucial role in regulating the planet's temperature by trapping or reflecting heat.
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Eyes, nose, mouth would each be an example of a(n)
a. organ system
b. Cell
c. tissue
d. organ
Answer:
I think it is Organ
Explanation: