Physical property of matter because you don't have to change its chemical make-up to tell, you can observe it using your senses and tools.
Answer:
It is a sample of matter with both constant and definite composition
Explanation:
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Answer:
c.- How much of the reactants are needed and how much product will made.
Explanation:
The moles is the matter unit used in chemistry to simplify some calculations, instead of using grams. Also the moles are very useful because the chemical reaction can be balanced.
When a Chemical reaction is balanced, then it can be easily to calculate how many moles are necessary to add in a process to obtain a quantity of grams of a product.