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Which of the following will NOT happen when a liquid undergoes a physical change?(1 point)

Responses

The molecules become more closely packed.
The molecules become more closely packed.

The kinetic energy of the molecules increases.
The kinetic energy of the molecules increases.

The motion of the molecules will decrease.
The motion of the molecules will decrease.

The molecules will rearrange to form new chemical bonds.
The molecules will rearrange to form new chemical bonds.

Maya heats a liquid until it changes to a gas. What type of change occurs to the liquid?(1 point)
Responses

Physical
Physical

Chemical
Chemical

None

A cut apple reacts with the oxygen in the air after being cut by turning dark, which is a physical change.(1 point)
Responses

True
True

False

joe watches a candle burn. What chemical change does he observe?(1 point)
Responses

The candle wax turns liquid as it burns
The candle wax turns liquid as it burns

The heat melts the candle wax
The heat melts the candle wax

Heat and light are produced
Heat and light are produced

The candle wax changes shape

Which element does NOT have similar chemical properties to neon (Ne)?

(1 point)
Responses

Xe
Xe

He
He

F
F

Ar

1 answer

Here are the answers to your questions:

  1. Which of the following will NOT happen when a liquid undergoes a physical change?

    • The molecules will rearrange to form new chemical bonds.
    • (Physical changes involve changes in state or appearance without altering the chemical structure of the molecules.)

  2. Maya heats a liquid until it changes to a gas. What type of change occurs to the liquid?

    • Physical
    • (The process of changing from a liquid to a gas is a physical change.)

  3. A cut apple reacts with the oxygen in the air after being cut by turning dark, which is a physical change.

    • False
    • (The browning of an apple is a chemical change due to oxidation, not a physical change.)

  4. Joe watches a candle burn. What chemical change does he observe?

    • Heat and light are produced
    • (This indicates a chemical change where new substances are formed as the wax burns.)

  5. Which element does NOT have similar chemical properties to neon (Ne)?

    • F
    • (Neon is a noble gas, while fluorine (F) is a halogen and has different chemical properties.)