Answer:
What?
Explanation:
it got mixed up or something
What do you need help with
Answer:
By using magnet.
Explanation:
Put sand and zinc in the bowl.
Take a magnet an bring it close to the bowl.
The zinc from the sand will be attracted towards the magnet.
In this way it will be separated.
.42; 3.4 divided by 8.1 is about .42
There are two that seem correct to me but i would go with the first answer choice, a mole of cu atoms has the same number or atoms as a mole of he atoms.
