When sodium metal is added to water, an orange flame is observed on the metal surface. Based on this observation, what can best be concluded?

A physical change occurs because the metal gets smaller.

A chemical reaction occurs because the liquid becomes cloudy.

A chemical reaction occurs because heat and light are given off.

A physical change occurs because vapor is released into the air.

Question

Chemistry

Elaina Nielsen

14 August, 08:04

When sodium metal is added to water, an orange flame is observed on the metal surface. Based on this observation, what can best be concluded?

A physical change occurs because the metal gets smaller.

A chemical reaction occurs because the liquid becomes cloudy.

A chemical reaction occurs because heat and light are given off.

A physical change occurs because vapor is released into the air.

+2

Answers (2)

Know the Answer?

Hannah · Answer 1

I think the correct answer from the choices listed above would be the third option. From the observation stated above, it can be concluded that a chemical reaction occurs because heat and light are given off which are characteristics of a chemical reaction. Hope this answers the question.

Alivia Cain · Answer 2

A chemical reaction occurs because heat and light are given off.