Answer:
The number before any molecular formula applies to the entire formula. So here you have five molecules of water with two hydrogen atoms and one oxygen atom per molecule. Thus you have ten hydrogen atoms and five oxygen atoms in total.
I think the answer is -12.7
Answer:
mass
Explanation:
It is the amount of matter .
Answer:High-purity chemicals are all-the-more important during the manufacturing process because chemicals are often used in bulk. ... In plastics, for example, an impure chemical substrate can produce an end-product that's too brittle to use. In pharmaceuticals, one impure component can render a drug dangerous
Explanation:
