False, changes in matter indicate a physical change.
1p is not possible because it goes like this 1s2 2s2 2p6
Answer:
130.5g
Explanation:
At the of the reaction, the combined mass of X and Y will be 130.5g.
The premise for this conclusion is based on the law of conservation of matter.
This law states that "in a chemical reaction, matter is neither created nor destroyed but changed from one form to another".
In essence, in a chemical reaction, there is no mass loss.
- The amount of product in the reaction is expected to be the same as the amount of reactants used in the experiment.
- When we start with 130.5g then we should end with 130.5g
