A chemical reaction is the process in which atoms present in the starting substances rearrange to give new chemical combinations present in the substances formed by the reaction. These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.
You can eliminate A, C, and D almost instantly if you know that engineers are construction workers. The answer is B.
It is softer than topaz and and it is softer than diamond (diamond has a Mohs hardness of 10, which is the highest value of the scale)
Answer:
The first one
Explanation:
Elements are as simple as it gets
If the equation is complete the products would be manganese chloride and oxygen gas would be given off.
MnCl2 + O2
