Chemistry, 04.02.2020 06:57 sandrahg3

Plz

sodium metal (na) and chlorine gas (cl) are two reactive and dangerous elements. chlorine is a halogen gas that can cause respiratory damage and sodium is an alkali metal that reacts violently with water.

1. what happens to the properties of sodium and chlorine when they react to form sodium chloride (nacl), common table salt?
a) the properties of both sodium and chlorine change.
b) the properties of both sodium and chlorine remain the same.
c) the properties of sodium are different but chlorine remains a dangerous gas.
d) the properties of sodium remain the same but the properties of chlorine change.

2. a change in means that a chemical reaction has occurred.
a) the energy and mass
b) the kinds of atoms involved
c) the properties and identity of the reacting substances
d) the energy and kinds of atoms of the reacting substances

Answers: 3

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 03:00

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Answers: 1

Answer

Chemistry, 22.06.2019 15:30

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn

Answers: 1

Answer

Chemistry, 23.06.2019 07:00

Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.

Answers: 2

Answer

Chemistry, 23.06.2019 11:40

An electron moved from a lower energy level to a higher energy level. what most likely happened during the transition? a random amount of light was released. a fixed amount of energy was absorbed. a fixed amount of energy was released. a random amount of light was absorbed.

Answers: 1

Answer

You know the right answer?

Plz

sodium metal (na) and chlorine gas (cl) are two reactive and dangerous elements. ch...

Questions