What is the overall charge of the electron cloud of the atom? Explain.​

Explanation:

calcium + hydrochloric acid to give calcium chloride and Hydrogen gas.

the state symbols represent:

s - solid

g - gas

l - liquid

aq- aqueous

it's not necessary to balance the word equation

Answer:

The main characteristics of glass are transparency, heat resistance, pressure and breakage resistance and chemical resistance.

Explanation:

I hope this help

Mark me brainliest

The statement which describes a characteristic of a question that can be answered through scientific inquiry is that it can be answered using measurements.

This is referred to as a collection of quantitative or numerical data that describes a property of an object or a body. it has units which depicts the quantities which are present and an example is the unit of length being meter.

An example of a scientific method is experimentation which include different parameters. these parameters are mostly measured to get the actual values which makes it unique among other sets.

The features of a question that can be answered through scientific inquiry is that it can be answered using measurements because different values are getting and tested when dealing with a scientific method.

Read more about Measurement here https://brainly.com/question/777464

#SPJ1

When we have a chemical reaction, the speed of the reaction will depend on different factors such as concentration, temperature, or pressure.

If we assume that the temperature and pressure remain constant, it will be the concentration that will determine the rate of reaction for a non-zero order reaction.

If the concentration of the reactants decreases, the reaction rate also decreases, therefore, if the reactants are depleted, the reaction rate decreases.

Answer: D. The rate of the reaction slows down.

The number of molecules in 37.93g of magnesium nitrate will be : 0.2568 mol * 6.022x10^23 molecules/mol = 1.55x10^24 molecules.

To determine the number of molecules in a 37.93 gram sample of magnesium nitrate, you would need to know the molar mass of the compound. Magnesium nitrate has a molar mass of 148.31 g/mol.

we can use the formula:

Number of moles = mass (in grams) / molar mass (in g/mol)

Number of moles = 37.93 g / 148.31 g/mol = 0.2568 mol Avogadro's number (6.022x10^23) is the number of atoms, ions, or molecules in one mole of a substance. Therefore, the number of molecules in 37.93g of magnesium nitrate will be : 0.2568 mol * 6.022x10^23 molecules/mol = 1.55x10^24 molecules.

Learn more about molar mass here:

https://brainly.com/question/22997914

#SPJ4

The frequency of the color light, given that it has a wavelength of 5.0×10⁻⁷ m is 6.0×10¹⁴ Hertz (last option)

First, we shall list out the given parameters from the question. This is shown below:

Speed, wavelength and frequency of wave are related by the following formula:

Velocity (v) = wavelength (λ) × frequency (f)

Inputting the given parameters, we can obtain the frequency as shown below:

3×10⁸ = 5.0×10⁻⁷ × frequency

Divide both sides by 5.0×10⁻⁷

Frequency = 3×10⁸ / 5.0×10⁻⁷

= 6.0×10¹⁴ Hertz

Thus, we can conclude that the frequency of the color light is 6.0×10¹⁴ Hertz (last option)

Learn more about frequency:

https://brainly.com/question/23060871

#SPJ1

The process of chemicals released from human activity interacting with the atmosphere to form acid rain occurs primarily in the troposphere, the lowest layer of the atmosphere.

Chemicals released into the air from human activities, such as sulfur dioxide (SO2), carbon dioxide (CO2), and nitrous oxide (N2O), undergo various reactions in the atmosphere. These chemicals primarily interact with atmospheric components in the troposphere, the lowest layer of the atmosphere.

When released, sulfur dioxide (SO2) reacts with other atmospheric gases, such as oxygen and water vapor, to form sulfuric acid (H2SO4).

Carbon dioxide (CO2) and nitrous oxide (N2O) do not directly form acid rain but contribute to the overall acidity of rain through their role in the greenhouse effect, which leads to changes in rainfall patterns and alters the chemical balance in the atmosphere.

Ultimately, these chemical reactions and interactions take place in the troposphere, where weather processes occur and the majority of Earth's human activities and pollution emissions take place.

For more questions like Atmosphere click the link below:

https://brainly.com/question/11192430

#SPJ11

Answer:

so the third one

Explanation:

During the day, the sun heats up mountain air rapidly while the valley remains relatively cooler. Convection causes it to rise, causing a valley breeze. At night, the process is reversed. During the night the slopes get cooled and the dense air descends into the valley as the mountain wind.

Answer:

The Sun warms the tops of hills and mountains more than it does the valley.

Explanation:

The molarity of a solution is defined as the number of moles of solute per liter of solution. To determine the molarity of a solution, we need to calculate the number of moles of NaCl and the volume of the solution in liters.

First, we need to convert the mass of NaCl from grams to moles. The molar mass of NaCl is 58.44 g/mol.
Number of moles of NaCl = mass of NaCl / molar mass of NaCl
Number of moles of NaCl = 2.179E1 g / 58.44 g/mol
Next, we need to convert the volume of the solution from milliliters to liters.
Volume of solution = 1.32E2 mL / 1000 mL/L
Now, we can calculate the molarity.
Molarity = number of moles of NaCl / volume of solution
Molarity = (2.179E1 g / 58.44 g/mol) / (1.32E2 mL / 1000 mL/L)
Simplifying the calculation gives us the main answer.
The molarity of the solution prepared by dissolving 2.179E1 grams of NaCl in water to make a 1.32E2 mL solution is the number of moles of NaCl divided by the volume of the solution in liters. By converting the mass of NaCl to moles and the volume of the solution to liters, we can calculate the molarity. The molar mass of NaCl is 58.44 g/mol, and the volume of the solution is 1.32E2 mL, which is equal to 0.132 L.

To know more about molar mass, visit:

https://brainly.com/question/30640134

#SPJ11

Answer:

b

Explanation:

I think not for sure tho

Answer:

At its most basic level, heat is just

B energy

Explanation:

Answer: A

Explanation: A

The experimental percentage yield is the ratio of the actual yield of the product of a reaction to its theoretical yield multiplied by 100.

Percentage yield of a reaction is used to study the efficiency of a chemical reaction. It is the ratio of the actual yield to the theoretical yield multiplied by 100.

The actual yield of a reaction is the experimentally obtained value and it will be less than theoretical yield which is derived from the balanced chemical equation of the reaction.

For example if 5 g be the actual yield of the product in a reaction, but the theoretical or expected yield derived from the equation be 7 g.

then the percentage yield  = 5 /7 × 100 = 71.4 %.

To find more on percentage yield, refer here:

https://brainly.com/question/29714892

#SPJ1

Answer:

I think it's B. Nonmetal

(I'm so sorry if it's wrong)

Hope this Helps!

Answer:

I personally think it's both I'm sorry if this is wrong

The binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond.  Option b

Aminoacyl-tRNA is a complex molecule that plays a crucial role in protein synthesis. It consists of a tRNA molecule covalently linked to an amino acid. The amino acid is attached to the 3' end of the tRNA molecule through an ester bond.

An ester bond is formed between the carboxyl group (-COOH) of the amino acid and the hydroxyl group (-OH) of the ribose sugar at the 3' end of the tRNA molecule. This ester bond is also referred to as an ester linkage. The formation of the ester bond is catalyzed by the enzyme aminoacyl-tRNA synthetase.

The ester bond in aminoacyl-tRNA is essential for protein synthesis. During translation, the aminoacyl-tRNA molecule carries the specific amino acid to the ribosome, where it is incorporated into the growing polypeptide chain. The ester bond is later hydrolyzed, releasing the amino acid for further use in protein synthesis.

In summary, the binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond between the carboxyl group of the amino acid and the hydroxyl group of the ribose sugar in the tRNA molecule.

Option b

For more such question on amino acid visit:

https://brainly.com/question/30265108

#SPJ8

Answer:

knowing that something is a matter help you identify whether a substance is either solid, liquid or gas

Explanation:

knowing that a certain substance falls under the three groups is important. solid has a fixed volume, shape and mass, but cannot be compressed and cannot flow, liquid has a fixed volume but no fixed shape, cannot be compressed but can glow, gas has no fixed shape, no fixed volume, can be compressed and can flow

Answer: Distance the car has driven

Explanation:

The speed equation is speed=distance/time and since we already know time we need to know distance to solve for speed

According to the question  0.027647352941176 liters phosphoric acid  would this be.

Phosphoric acid is an inorganic acid composed of phosphorus and oxygen, with the chemical formula H3PO4. It is an odorless, colorless, syrupy liquid that is non-flammable and slightly acidic. It is a tribasic acid, meaning that it has three ionizable hydrogen atoms, making it a strong acid when in aqueous solution. Phosphoric acid is used in many applications including food processing and production, pharmaceuticals, and various industrial processes.

2.3 g of 85% phosphoric acid is the same as 2.3 g of 85% H3PO4. To calculate the number of liters, we first need to convert the mass of H3PO4 to moles.

1 mole of H3PO4 has a mass of 98.00 g. Therefore, 2.3 g of H3PO4 is equal to 0.0235 moles.

We can now use the molarity formula to calculate the number of liters:

Molarity = moles/liters

liters = moles/Molarity

liters = 0.0235 moles/0.85

liters = 0.027647352941176 liters

To learn more about phosphoric acid

https://brainly.com/question/14812997

#SPJ4

The density of the substance having a mass of 2.0 g is 0.4 g/mL (Option D)

First, we shall obtain the volume of the substance. This can be obtained as follow:

Volume of substance = (Volume of water + substance) - (Volume of water)

Volume of substance = 75 - 70

Volume of substance = 5 mL

Finally, we shall determine the density of the substance. This is illustrated below:

Density = mass / volume

Density of substance = 2 / 5

Density of substance = 0.4 g/mL

Thus, the density is 0.4 g/mL (Option D)

Learn more about density:

https://brainly.com/question/952755

#SPJ1

Hydration is a specific example of the phenomenon known generally as a. solvation

The act of hydrating involves combining or dissolving an object in water. It is a particular instance of the more general phenomena known as solvation, which is the process by which solvent molecules surround and scatter a solute to create a homogeneous solution. However, hydration explicitly refers to solvation with water as the solvent.

Solvation may also happen with solvents other than water. Solvation is the process through which a solute and solvent interact to stabilise a solute species. Due to its impact on the solubility, reactivity, and behaviour of compounds in solution, solvation is a crucial mechanism in many chemical and biological processes.

Read more about solvation on:

https://brainly.com/question/530845

#SPJ4

Answer:

Explanation:

1s^2 2s^2 2p^6 3s^1

When two monosaccharide units react via their hydroxyl (OH) functional groups, a disaccharide is formed. The linkage between the monosaccharide units in a disaccharide is known as a glycosidic linkage.

The glycosidic linkage is a covalent bond that joins the two monosaccharide units together. It is formed through a dehydration or condensation reaction, where the hydroxyl group from one monosaccharide combines with the hydrogen atom from the other monosaccharide, resulting in the formation of a water molecule. The remaining oxygen atom from each monosaccharide forms the glycosidic bond.

The specific type of glycosidic linkage depends on the orientation of the hydroxyl groups involved in the reaction. Common types of glycosidic linkages include alpha and beta linkages. In an alpha linkage, the hydroxyl group involved in the reaction is positioned below the plane of the ring, while in a beta linkage, the hydroxyl group is positioned above the plane of the ring.

The type and position of the glycosidic linkage in a disaccharide determine its properties and functionality. Different disaccharides, such as sucrose, lactose, and maltose, have distinct glycosidic linkages, resulting in their unique structures and functions.


To learn more about glycosidic linkage click here: brainly.com/question/6834008

#SPJ11

The maximum amount of NaNO3 that was produced during the experiment is 4 moles.

An experiment is described as a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried.

We  determined by using the stoichiometry of the reaction, which states that for every mole of Al(NO3)3 that reacts, 1 mole of NaNO3 is produced.

So because  the starting amount of Al(NO3)3 was 4 moles, it follows that the maximum amount of NaNO3 that could be produced is also 4 moles.

Learn more about experiments at: https://brainly.com/question/17274244

#SPJ1

Answer: 8

Explanation:

Answer:

I think the answer is 4 or 3, it could be 2 as well, I'm not sure.

Explanation:

Answer: Magnets have a force which is known as no contact force. This force tries to attract the metallic objects near it, which makes it move.

Explanation:

To determine the theoretical yield of magnesium solid that can be formed when 5.00 grams of rubidium reacts with 3.44 grams of magnesium chloride. Therefore, the theoretical yield of magnesium solid that can be formed is 0.711 grams.

2Rb(s) + MgCl2(s) → 2RbCl(s) + Mg(s)

From the balanced equation, we can see that 2 moles of rubidium react with 1 mole of magnesium chloride to produce 1 mole of magnesium. Therefore, we need to calculate the number of moles of rubidium and magnesium chloride present in the given masses, and then use the stoichiometric coefficients to determine the theoretical yield of magnesium.

First, we need to convert the masses of rubidium and magnesium chloride to moles:

Number of moles of Rb = mass of Rb / molar mass of Rb

= 5.00 g / 85.47 g/mol

= 0.0585 mol

Number of moles of MgCl2 = mass of MgCl2 / molar mass of MgCl2

= 3.44 g / (24.31 g/mol + 2 x 35.45 g/mol)

= 0.0312 mol

Next, we can use the mole ratios from the balanced equation to determine the theoretical yield of magnesium:

Number of moles of Mg = 1/2 x number of moles of Rb

= 1/2 x 0.0585 mol

= 0.0293 mol

The mass of magnesium can be calculated from the number of moles using its molar mass:

Mass of Mg = number of moles of Mg x molar mass of Mg

= 0.0293 mol x 24.31 g/mol

= 0.711 g

Learn more about magnesium chloride here:

https://brainly.com/question/15296925

#SPJ11

Answer:

C₂H₄O

Explanation:

The empirical formula of a compound is defined as the simplest whole number ratio of the atoms present in a molecule. As we have in the molecule Carbon, Hydrogen and Oxygen to find the simplest ratio we need to divide each number of moles in the moles of Oxygen (The lower number). As follows:

C = 0.5mol C / 0.25mol O = 2

H = 1 mol H / 0.25mol O = 4

O = 0.25mol O / 0.25mol O = 1

The empirical formula is:

Using indicators at a certain point in each reaction the solution turned blue, indicating that a pH change had occurred due to increase in the hydroxide ion concentration.

Indicator is defined as a chemical substance which is chemically a weak acid or a weak base which changes it's color depending upon the concentration of hydrogen ions present in the solution.They dissociate slightly in water to produce ions.

These are generally derived from plant pigments and are of slightly acidic or basic in nature.There are three types of indicators:

1) natural indicators

2) synthetic indicators

3) olfactory indicators.

These are mainly used in determination of end point of titrations. Every indicator has it's pH range in which it can perform effectively.These are usually organic compounds.

Learn more about indicators,here:

https://brainly.com/question/12708635

#SPJ2