Answer:
A. Mass
Explanation:
If it takes up space it has to have mass. Not everything that is matter has a color, certain length or width.
D. As more electrons are added to an element, the number of electron orbitals being filled increases
Answer:
the answer is C + H2O # CO + H2.
The answer is 300
3 * 100
3 * 10 * 10
30 * 10
300
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