No mathematics the most common way of solving an equation will be PEMDAS so the answer for your question will most likely be subtraction.
I think they test ideas about chemical evolution by doing experiments. Hope this helps
Endothermic reaction is the reaction in which the system absorbs energy. The system absorbs heat and cools the surroundings. Reactants are the substances that are involved in the reaction and at the end of the reaction product are formed.
In the endothermic reaction because heat is absorbed , the products have a higher heat.
Answer: acceleration= Change in velocity/ change in time
Explanation:
A= Delta v/ delta t
