How much of each of the following substances would you add to water to prepare 1.50 l of a 0.60 m solution?

Answer:

B has highest stability

Explanation:

as its octet is complete

plz mark brainliest if it helps

The book titled "Element of Propulsion: Gas Turbines and Rockets" by J.D. Mattingly is part of the AIAA Education Series and was published in 2006. It serves as a valuable resource for understanding the principles and applications of gas turbines and rockets in propulsion systems.

"Element of Propulsion: Gas Turbines and Rockets" provides comprehensive coverage of the fundamental concepts and advanced topics related to gas turbine and rocket propulsion. The book delves into the theoretical principles, design considerations, and practical applications of these propulsion systems.

It explores the thermodynamics, fluid mechanics, combustion, and performance characteristics involved in gas turbine and rocket engines.

J.D. Mattingly, the author of the book, is a recognized expert in the field of propulsion systems and has extensive experience in teaching and research. His expertise and knowledge are reflected in the content of the book, making it a valuable educational resource for students, researchers, and professionals in the aerospace and propulsion engineering domains.

To know more about thermodynamics, click here-

brainly.com/question/15265844

#SPJ11

Answer:

Land plants are also known as Embryophytes. Embryophytes are complex multicellular eukaryotes with specialized reproductive organs. The name derives from their innovative characteristic of nurturing the young embryo sporophyte during the early stages of its multicellular development within the tissues of the parent gametophyte.

Explanation:

Answer:

there used for mountains , wait I'm just trynna get points ya feel me

Explanation:

Answer:

398 mL

Explanation:

Using the equation for molarity,

C₁V₁ = C₂V₂ where C₁ = concentration before adding water = 8.61 mol/L and V₁ = volume before adding water, C₂ = concentration after adding water = 1.75 mol/L and V₂ = volume after adding water = 500 mL = 0.5 L

V₂ = V₁ + V' where V' = volume of water added.

So, From C₁V₁ = C₂V₂

V₁ =  C₂V₂/C₁

= 1.75 mol/L × 0.5 L ÷ 8.61 mol/L

= 0.875 mol/8.61 mol/L

= 0.102 L

So, V₂ = V₁ + V'

0.5 L = 0.102 L + V'

V' = 0.5 L - 0.102 L

= 0.398 L

= 398 mL

So, we need to add 398 mL of water to the nitric solution.

Answer: The pancreas is a gland organ located in the abdomen. ... The end of this duct is connected to a similar duct that comes from the liver, which delivers bile to the duodenum. ... A person can usually treat minor chest injuries at home with rest and ...

Mass defect is the difference between the predicted mass and the actual mass of an atom's nucleus. (Option C)

mass defect and is a measure of the total binding energy of the nucleus. Mass defect can be defined as the difference between the predicted mass and the actual mass of an atom's nucleus.

Therefore, the mass defect measure the difference between the predicted mass and the actual mass of an atom's nucleus.

Read more on Mass Defect:

https://brainly.com/question/1407320

#SPJ2

The statement " Use the mo diagrams to calculate the bond order for li2+ and li2−" is false.

While molecular orbital (MO) diagrams can be used to calculate bond orders for diatomic molecules, the question does not provide the necessary information to draw the MO diagrams for Li2+ and Li2−. Bond order is the number of chemical bonds between a pair of atoms, which is calculated as the difference between the number of bonding electrons and anti-bonding electrons divided by 2.

In MO theory, bonding orbitals are formed by constructive interference of atomic orbitals, while anti-bonding orbitals are formed by destructive interference. To calculate the bond order, one would need to know the number of valence electrons for each ion, which is not provided.

Additionally, the MO diagrams would need to be constructed by combining the appropriate atomic orbitals for each ion, which would depend on the electronic configuration. Without this information, it is not possible to accurately calculate the bond order using MO theory.

For more such questions on bond order

https://brainly.com/question/9713842

#SPJ11

Explanation:

=> The simplest form of

56

:

98

56:98 is

4

:

7.

4:7.

Step-by-step explanation:

Given ratio -

56

:

98

56:98

We have to reduce it to its simplest form,

For that, we have to find the GCD of the numerator as well as the denominator:

So, the GCD for

56

56 and

98

98 is

14.

14.

Now, divide both the numerator and denominator by the GCD:

=

>

56

÷

14

98

÷

14

=>

98÷14

56÷14

=

>

4

7

=>

7

4

Hence, the simplest form is

4

:

7.

Answer:

(b)  19.9 moles

Explanation:

To convert from moles Al to moles O₂, you need to multiply the given value by the mole-to-mole ratio of each component. This ratio is constructed via the coefficients in the balanced reaction. The desired unit (moles O₂) should be placed in the numerator to allow for the cancellation of units.

2 Al₂O₃ ----> 4 Al + 3 O₂
                    ^         ^            

26.5 moles Al           3 moles O₂
---------------------  x  ----------------------  =  19.9 moles O₂
                                 4 moles Al

Answer:

D. Water vapor in the air condenses to form liquid water or ice

Explanation:

took test on e2020

The systematic name for the compound Ba(NO3)2 is barium nitrate. Barium nitrate is an inorganic salt with the chemical formula Ba (NO3)2. It is a colorless, odorless, and crystalline solid that is highly soluble in water. The compound is formed by combining one atom of barium and two ions of nitrate.

The name “barium” comes from the Greek word “barys,” which means “heavy,” and is a reference to its high density. The term “nitrate” refers to the polyatomic ion NO3-, which is composed of one nitrogen atom and three oxygen atoms. Barium nitrate is commonly used in pyrotechnics, as it is a powerful oxidizing agent that produces a bright green flame when ignited.

The systematic naming of inorganic compounds is based on the rules set out by the International Union of Pure and Applied Chemistry (IUPAC). The name of an ionic compound is composed of the cation name followed by the anion name. In the case of barium nitrate, “barium” is the name of the cation, while “nitrate” is the name of the anion.

Therefore, the systematic name for the compound Ba(NO3)2 is barium nitrate.

Know more about systematic name here:

https://brainly.com/question/1787202

#SPJ11

Answer: 1.2 M

Explanation:

molarity = (moles of solute)/(liters of solution) = 2.4 / 2.0 = 1.2 M

Based on the molarity of the solutions;

pH is the negative logarithm to base ten of the hydrogen ions concentration of a solution.

pOH is the negative logarithm to base ten of the hydroxide ions concentration.

Also;

For HCl:

pH = -log [H3O+]

pH =-log (0.200)

pH = 0.699

Then;

poH= 14-0.699

pOH = 13.301

For NaOH:

pOH= -log [OH-]

= -log (0.0143)

pOH = 1.845

Then;

pH= 14-poH

= 14- 1.845

pH = 12.16

For HNO3:

pH= -log[H3O+]

=-log(3.0)

= -0.4771

Then;

pOH = 14-9-0.4771

pOH = 14.4771

For [Ca(OH)2]

molarity = 0.0031M

2 moles of OH- are produced

[OH-]= 2 × 0.0031

[OH-] = 0.0062M

pOH = - log[OH-]

=-log(0.0062)

=-log(6.2x10-3)

=-(-2.21)

pOH = 2.21

Then;

pH =14-2.21

pH =11.79

Learn more about pH and pOH at: https://brainly.com/question/13557815

A total of 26 valence electrons—13 electron pairs—are seen in the Lewis dot structure of SO32-. There are 4 bond pairs, 9 lone pairs, and 13 electron pairs in all.

The valence electrons of atoms within a molecule are depicted in diagrams known as Lewis structures, commonly referred to as Lewis dots or electron dot structures. These Lewis symbols and Lewis structures aid in the visualisation of the valence electrons of atoms and molecules, whether these electrons are found as lone pairs or within bonds.

A total of 26 valence electrons—13 electron pairs—are seen in the Lewis dot structure of SO32-. There are 4 bond pairs, 9 lone pairs, and 13 electron pairs in all. The one lone pair of electrons on the central sulphur atom is one of the nine lone pairs.

Three oxygen anions O2- and a sulphur cation with a centre, S4+, combine to form the sulfurate ion. The three oxygen atoms form the basis of the trigonal pyramid-shaped structure, which also includes a single pair of electrons atop the sulphur atom.

10 pairs of electrons are left.

To learn more about Lewis dot structure refer to:

https://brainly.com/question/20300458

#SPJ4

C. Angiosperms (flowering plants)

Synthesis. Iodine monobromide is formed when iodine and bromine are combined in a chemical reaction: I2 + Br2 → 2 IBr.

The intermolecular forces that act between a nitrogen trichloride (NCl3) molecule and a dichloroethylene (CH2Cl2) molecule are dipole-dipole interactions and dispersion forces.

Intermolecular forces refer to the attractive and repulsive forces that occur between molecules in a substance. These forces arise due to the interactions between the charges on the atoms or molecules that make up the substance. Intermolecular forces are responsible for the physical properties of matter such as melting and boiling points, surface tension, and viscosity.

The types of intermolecular forces include London dispersion forces, dipole-dipole forces, and hydrogen bonding. London dispersion forces are present in all molecules and arise due to temporary fluctuations in the electron density of the molecule. Dipole-dipole forces occur in polar molecules where the positively charged end of one molecule interacts with the negatively charged end of another. Hydrogen bonding is a type of dipole-dipole force that occurs between a hydrogen atom bonded to an electronegative atom such as nitrogen, oxygen, or fluorine and a lone pair of electrons on another electronegative atom.

To learn more about Intermolecular forces visit here:

brainly.com/question/9007693

#SPJ4

Answer:

The substances present after the reaction are called products.

Explanation.

They are called reactants at the start of the reaction.

Yes, a precipitate will form in this reaction. The precipitate that will form is CrPO₄.

The reaction is a double displacement reaction between two soluble salts, K₃PO₄ and Cr(NO₃)₃, with the two potassium nitrate (KNO₃) ions acting as a common ion. In a double displacement reaction, the cations and anions of the two reactants switch places, forming two new products.

In this reaction, the cations, K⁺ and Cr³⁺, will switch places, and the anions, PO₄³⁻ and NO₃⁻ will switch places, resulting in the formation of two new products: KNO₃and CrPO₄.

The balanced chemical equation for the reaction between K₃PO₄ and  Cr(NO₃)₃  is given below:

K₃PO₄ + Cr(NO₃)₃ → 3KNO₃ + CrPO₄ (s)

We need to identify the product which is an insoluble solid. According to the solubility rules, most nitrates are soluble in water, and only a few nitrates of metal cations are insoluble. Potassium nitrate (KNO₃ ) is a water-soluble salt, so it cannot be the product that forms a precipitate in the above reaction.

Chromium phosphate (CrPO₄), on the other hand, is a slightly soluble salt and can be expected to form a precipitate. Hence, the precipitate formed as a result of the reaction between K₃PO₄ and Cr(NO)₃ is CrPO₄ (chromium phosphate).

Therefore, option (b) is the correct answer to this question, and the precipitation reaction will be represented as:

K₃PO₄ + Cr(NO₃)₃ → 3KNO₃ + CrPO₄ (s)

To know more about CrPO₄, refer here:

https://brainly.com/question/8264348#

#SPJ11

Answer:

OBSERVATION

Explanation:

In science, before an hypothesis is made, a concept must have been observed. Hence, for Karen to make an hypothesis about her project, she must have a comprehensive observation about how this plant is grown somewhere else leading her to question different concepts about this growth mechanism. This question or observation will lead her to her own experimental design and the type of hypothesis she is to make.

NOTE: There are several concepts she can decide to question aside from the growth, she can decide to question colour, texture, food produced among others.

The student's claim of 4.64 × 10^24 molecules is incorrect, and the correct number of molecules of ammonium acetate used in the reaction is 6.022 × 10^22 molecules.

The mistake the student made is assuming that the molar mass of ammonium acetate directly corresponds to the number of molecules. However, the molar mass of a substance represents the mass of one mole of that substance, not the number of molecules.

To determine the correct number of molecules of ammonium acetate used in the reaction, we need to use Avogadro's number, which relates the number of particles (atoms, molecules, etc.) in one mole of a substance.

Avogadro's number is approximately 6.022 × 10^23 particles/mol. Given that the student used 0.100 mol of ammonium acetate, we can calculate the correct number of molecules by multiplying the number of moles by Avogadro's number:

Number of molecules = (0.100 mol) × (6.022 × 10^23 molecules/mol)

Performing the calculation, we find that the correct number of molecules of ammonium acetate used in the reaction is 6.022 × 10^22 molecules.

For more such questions on ammonium acetate visit:

https://brainly.com/question/29570260

#SPJ8

Answer:

2:a-heterogenous

b-homogenous

c-heterogenous

d-heterogenous with water

3:Filtration is used to separate insoluble particles from a solution

Distillation is used to separate liquids with close but different boiling points e.g water and ethanol

Explanation:

2: homogenous mixtures form a uniform layer meaning that a mixture containing more than one layer is heterogenous

The correct answer is B. 30.0%. Acetone, C3H6O, has three carbon atoms and six hydrogen atoms. The molar mass of C3H6O is 58.08 g/mol. The mass of carbon in one mole of C3H6O is 3 x 12.01 g = 36.03 g. Therefore, the percent by mass of carbon in C3H6O is 36.03/58.08 x 100 = 61.99%, which is 30.0% when rounded to the nearest whole number.

can you give me the brilliant mark?

Motivation generally arises inside people as a consequence of their desire for a particular outcome or goal.

It can be influenced by a variety of factors, including personal values, beliefs, experiences, and external incentives. The consequences of achieving or failing to achieve a goal can also impact a person's motivation, as they may experience a sense of reward or disappointment depending on the outcome. Additionally, the support and encouragement of other people can play a significant role in boosting motivation and helping individuals stay on track towards their desired outcome.

To know more about goal , visit

https://brainly.com/question/1512442

#SPJ11

If you expand your lungs to 2.6 l, the new pressure inside your lungs is 0.9346 atm.

The new pressure inside your lungs can be determined by using the Boyle's Law equation: P₁V₁ = P₂V₂. This equation relates the initial pressure and volume of a gas to the final pressure and volume of the same gas.

In this case, the initial pressure (P₁) is 1.05 atm, the initial volume (V₁) is 2.3 L, and the final volume (V₂) is 2.6 L. We need to find the final pressure (P₂).

Plugging in the given values into the equation:

P₁V₁ = P₂V₂

(1.05 atm)(2.3 L) = P2(2.6 L)

Dividing both sides by 2.6 L to isolate P₂:

P₂ = (1.05 atm)(2.3 L) / (2.6 L)

P₂ = 0.9346 atm

Therefore, the new pressure inside your lungs is 0.9346 atm.

Learn more about Boyle's Law here: https://brainly.com/question/1696010.

#SPJ11

2H₂ (g)  + O₂ (g) ↔ 2H₂O (g) + heat, The system will move towards the products of the reaction for H₂O and O₂, The system will tend to move towards the reactants for last two options in the question.

Changes to the reactant components or the environment or conditions in which the reaction is occurring can significantly alter the course of the entire reaction process in an equilibrium reaction. As a result, both the removal of H2O and the addition of O2 will alter the equation of the reaction system in the direction of the product. The equation shifts toward the reaction's reactants with a decrease in pressure and an increase in temperature. An equilibrium reaction, also known as a reaction in thermodynamic equilibrium, is a chemical reaction between the reactants that maintains a stable state both before and after the reaction is complete.

To learn more about reactants click here

brainly.com/question/17096236

#SPJ4

Answer:

You need 8 electrons to make a stable energy level. If you have any less, it won't make it "happy" per say, and with more it will make it happier but its probably safer to use the 8!

Explanation:

Hope this helps! Plz mark brainliest!

The following is the reaction that occurs during the heat decomposition of calcium carbonate according to the balanced chemical equation:

CaCO3(s) → CaO(s) + CO2(g)

According to this equation, calcium carbonate, which has the chemical formula CaCO3, breaks down into calcium oxide, which has the chemical formula CaO, and carbon dioxide, which has the chemical formula CO2. reaction.

The equation is considered to be balanced if the same number of atoms of each element can be found on both the left and right sides of the equation. In this particular instance, there is one atom of calcium (Ca), one atom of carbon (C), and three atoms of oxygen (O) on the left side (reactant side), and there is one atom of calcium (Ca), one atom of carbon (C), and two atoms of oxygen (O) on the right side (product side), which results in a balanced equation.

To know more about thermal decomposition:

https://brainly.com/question/465533