D because there needs to be a balanced equation
Answer:
because it helps you to understand what’s the most important thing on your ”to - do” list and helps you to get it done. the higher up it is on your list, the more you have to prioritize it to get it dome.
A chemical reaction is when atoms/molecules are taken apart and rearranged to create something new. So I think the answer is B
2Nal+CaCl2 should be right