First you need to know Avogadro constant and then divide it with mile 9f silicon.
then you got answer
mark as brainliest please
Answer:
a molecule is the <u>smallest</u> particle of a substance that can normally exist independenty
Answer:
single replacement reaction
Explanation:
This is a kind of single replacement reaction where you switch either cations or anions. Here you switched Ca for H and produced Cacl2 and H2 gas by itself.