Answer:
300,000km is the speed of light
Moles He = 7.83 x 10^24 / 6.02 x 10^23 =13.0
<span>mass He = 13.0 mol x 4.00 g/mol = 52.0 g</span>
The answer would be electronegativity
The type of bonds present in the compound. and the type of structure it has and the elements that are presents and the number of moles of each element in one mole of the compound.
1. The answer is E.
2. I agree with your answers.
3. I also agree with your answers