Near the surface of a liquid, fast-moving particles can break free and become a gas. a. True
b. False

Answers

Answer 1

Answer: This statement is True! Lets think about it... When water boils, the water doesnt evaporate from the bottom of the bowl it evaporates from the top!
=)

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Which changes occur as a cadmium atom, Cd, becomes a cadmium ion, Cd2+?(1) The Cd atom gains two electrons and its radius decreases.(2) The Cd atom gains two electrons and its radius increases.(3) The Cd atom loses two electrons and its radius decreases.(4) The Cd atom loses two electrons and its radius increases.
If a reaction system has come to equilibrium, the concentration of products can be increaseda. only if it is not reversible. c. by applying Le Châtelier’s principle. b. only if the temperature is low enough. d. under no circumstances.
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true or false inside a nuclear power plant nuclear fission takes place within the heat exchanger

What is the molarity of a 10 L solution containing 5.0 moles of solute?

Answers

Explanation:

Number of moles consisting in a liter of solution is known as molarity.

Mathematically, Molarity = \frac{\text{no. of moles}}{\text{Volume in one liter}}[/tex]

It is given that volume is 10 liter and there is 5.0 moles of solute. Hence, we will calculate the molarity as follows.

Molarity = $\frac{\text{no. of moles}}{\text{Volume in one liter}}$

= $(5.0 mol)/(10 liter)$

= 0.5 mol/L

Thus, we can conclude that molarity of the given solution is 0.5 mol/L.

Molarity = Moles of solute/ L(liters) of solution

So let's plug in the information.

5.0 moles/10L = 0.5 M

The saturation index for a pool measures the balance between the acid level and the amount of minerals in pool water. Balanced water has an index value of 0. Water is highly corrosive or highly scale forming if the absolute deviation of the index value from 0 is greater than 0.5. Find the index values for which pool water is highly corrosive or highly scale forming.

Answers

Answer: The water is highly corrosive when the saturation index < - 0.5 and

> 0.5

Explanation:

If the saturation index for a pool measures the balance between the acid level and the amount of minerals in pool water. Considering its balanced water has an index value of 0.

The water is highly corrosive when the saturation index < - 0.5 and

> 0.5

The attachment below shows the calculations.

Which sample of matter is a mixture?
(1) Br2(ℓ) (3) KBr(s)
(2) K(s) (4) KBr(aq)

Answers

The correct answer is option 4. KBr(aq) is an example of a mixture. The symbol (aq) means that the substance is in aqueous form. Thus, potassium bromide is dissolved in water. Mixture is defined as a system which contains two or more substances mixed but not combined chemically. The two substances here are KBr and water.

SKILL LEVELMastery
Which of these subatomic particles has virtually no mass?
a
Proton
b Nucleus
C Neutron
d Electron
Chockit
int?

Answers

the answer is D electron

Which statement describes electrolysis?(1) Chemical energy is used to produce an electrical change.
(2) Chemical energy is used to produce a thermal change.
(3) Electrical energy is used to produce a chemical change.
(4) Thermal energy is used to produce a chemical change

Answers

The electrolysis describe " electrical energy is used to produce a chemical change."

What is electrolysis?

The process of dissolving ionic compounds into various constituent components by running a continuous electric current through into the complex in a fluid form is known as electrolysis.

What iselectrical energy?

The energy produced by the flow of electrons from one location to another is referred to as electrical energy. Current or electricity is the transportation of charged particles across a medium.

The electrolysis describe " electrical energy is used to produce a chemical change."

To know more about electrolysis and electrical energy.

brainly.com/question/1580875

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The answer is (3) electrical energy is used to produce a chemical change. They use the electrical energy to achieve some reaction that is not easy to react under common condition. For example: 2H2O -> 2H2 + O2.

What does it mean that valence electrons in a metal are delocalized?

Answers

Delocalized means that electrons in the metal are not linked only to a single atom or in a bond. Electrons are free to move and around the crystal structure and carry currents. This is why, in metals, there is a term "electron sea".

Answer:

Explanation:

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Which statement describes a chemical property that can be used to distinguish between compound A and compound B?(1) A is a blue solid, and B is a white solid.(2) A has a high melting point, and B has a low melting point.(3) A dissolves in water, and B does not dissolve in water.(4) A does not burn in air, and B does burn in air.

Which element would release the most energy while adding an electron to a neutral atom in the gas phase? The choices are the following: Na. . Al. . Br. . S

What is the density of a substance with a mass of 1.8 kg and a volume of 0.2 L? Hurry Quick for 10 pointsgiveaway

All of the following can increase free radical production, EXCEPT: A)Smoking B)Tanning booths and radiation. C)All of these options increase free radical production. D)Consuming pesticides and chemical additives. E)Lead and other heavy metals exposure.