Explanation:
The mass of bromine is 79.904, and since there are two of them in the Calcium Bromide molecule, we'll multiply it by 2 to get 159.808. Dividing that by the full mass of the molecule then multiply it by 100 will give you the answer.
The answer is c because you said it was c lol
<span>Not all solids melt when they are heated. Some may undergo chemical changes as a result of heating. For example paper burns rather than melts</span>
adding more of solid X will increase the heat of the solution by another few degrees
Answer:
She did no work while she posed because she did not move the torch or the book.
Explanation: