Some examples from this set of practice questions
1.
What is a chemical reaction?
Answer: A chemical reaction is a process in which one or more substances are transformed into new substances with different chemical properties.
2.
What is a balanced chemical equation?
Answer: A balanced chemical equation is a representation of a chemical reaction that shows the same number of atoms of each element in the reactants and products.
3.
What is stoichiometry?
Answer: Stoichiometry is the study of the quantitative relationships between reactants and products in a chemical reaction.
4.
What is a mole?
Answer: A mole is a unit of measurement used to express the amount of a substance, equal to the number of atoms in 12 grams of carbon-12.
5.
What is the mole ratio?
Answer: The mole ratio is the ratio of the coefficients of two substances in a balanced chemical equation, which represents the ratio of the number of moles of each substance involved in the reaction.
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