Question

You are asked to build some models of methane molecules for a science fair. You will arrange your model atoms as shown on the right, but you will use ping-pong balls and tennis balls to model hydrogen atoms and carbon atoms. If you have 12 ping-pong balls, how many tennis balls will you need? Use the model you just developed to justify your answer.

Answer 1

Answer:

See explanation

Explanation:

The molecular formula of methane is CH4.

If I am to use ping-pong balls for hydrogen atoms and tennis balls for carbon and I have twelve hydrogen atoms, these twelve ping-pong balls will be sufficient to build three models.

That means I need three tennis balls in order to build three models of methane molecules.