CHEMISTRY HIGH SCHOOL

When boiling water begins to turn to steam, which of the following remains the same in both the liquid and the vapor?A. phase
B. density
C. volume
D. temperature

Answers

Answer 1
Answer: Temperature remains the same.

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_________ refers to the total energy of a system.a. Enthalpy
c. Entropy
b. Heating curve
d. Free energy

Answers

    Enthalpy refers to the total energy of a system. Hope this helped!

Answer:   a. Enthalpy

Explanation:

Which substance is an example of an element?A) bronze
B) copper
C) methane
D) rust

Answers

Copper is an element. An element is a substance that is entirely made from one type of atom.

It is B. I took the test!!

Which is NOT an indicator of a chemical change? Heat or light is produced. State of matter changes. A new substance is formed. A gas is formed.

Answers

The choice that is not an indicator of a chemical change is "State of matter changes". More common than not, chemical reactions produce energy in the form of light or heat. Along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid). Technically, a change in state is a physical change unless it also involves one of the other choices.

Answer:

State of matter changes.

Explanation:

Which of the following would most likely result in an increase in reaction rate? placing the reactants on a hotplate placing the reactants in an ice bath
placing the products in an ice bath

Answers

Answer:

placing the reactants on a hot plate

Explanation:

If the temperature goes up, the reaction rate will increase. Because the particle will move faster and makes the kinetic energy larger.

What are the four states of matter?

Answers

Solid, Liquid, Gas, and Plasma
Solid, Liquid, Gas, and Plasma

The difference in the direction is caused by the ______________.Please help!

Answers

What don’t understand question
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