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#1
Q: What is a synthesis reaction?
A: Two or more reactants combine to form one product: A + B → AB.
#2
Q: What is the pH scale?
A: 0–14 scale. pH < 7 = acidic, pH = 7 = neutral, pH > 7 = basic.
#3
Q: What is neutralisation?
A: An acid reacting with a base to form water and a salt.
#4
Q: Law of Conservation of Mass?
A: Matter cannot be created or destroyed; total mass of reactants = total mass of products.
#5
Q: What is a catalyst?
A: A substance that speeds up a chemical reaction without being consumed.
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