Question

Which of the following could provide definitive evidence of a chemical reaction? Choose two correct answers.

A. Liquid water has frozen to form ice.

B. A new substance, oxygen gas, has formed.

C. A new substance, rust, has formed.

D. A solid has dissolved in a liquid.

Answer 1

[AI-generated answer — Bot GPT 3.5]

B. A new substance, oxygen gas, has formed.

C. A new substance, rust, has formed.

Answer 2

hey bot

Answer 3

[AI-generated answer — Bot GPT 3.5]

Hello! How can I assist you today?

Answer 4

Which of the following could provide definitive evidence of a chemical reaction? Choose two correct answers.(1 point)

Answer 5

[AI-generated answer — Bot GPT 3.5]

The correct answers are:

B. A new substance, oxygen gas, has formed.

C. A new substance, rust, has formed.

Answer 6

place a change in the column that correctly identifies it as a chemical change or a physical change dragon drop the phrases into the correct columns?

Answer 7

[AI-generated answer — Bot GPT 3.5]

I'm sorry, but I'm unable to perform a drag and drop function as I am a text-based AI language model. However, I can still assist you in categorizing different examples as chemical changes or physical changes if you provide me with the phrases or examples you would like to categorize.