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Starter quiz
pH scale and universal indicator solution — Starter quiz
Question 1 of 5
Select all that apply
Which of these statements about chemical reactions are true?
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a
New products are made when a chemical reaction occurs.
b
New reactants are made when a chemical reaction occurs.
c
The total mass of reactants is the same as the total mass of the products.
d
No new substances are formed when a chemical reaction occurs.
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