Reactants and Products in Chemical Reactions
Chemistry ⇒ Chemical Reactions and Equations
Reactants and Products in Chemical Reactions starts at 7 and continues till grade 12.
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See sample questions for grade 8
Describe what happens to the reactants during a chemical reaction.
Explain why it is important to identify reactants and products in a chemical reaction.
Explain why the identification of reactants and products is important for balancing chemical equations.
Identify the products in the following reaction: CaCO3 → CaO + CO2
Fill in the blank: In the equation 2H2 + O2 → 2H2O, the product is _______.
Fill in the blank: In the reaction 2H2 + O2 → 2H2O, the reactants are _______ and _______.
Identify the products in the following reaction: CaCO3 → CaO + CO2
In the reaction 2Al + 3Cl2 → 2AlCl3, how many reactants are there?
Which of the following best describes a chemical equation? (1) A statement showing only the products (2) A statement showing only the reactants (3) A statement showing both reactants and products (4) A statement showing only the conditions
Which of the following best describes products in a chemical reaction? (1) Substances present before the reaction (2) Substances formed as a result of the reaction (3) Substances that speed up the reaction (4) Substances that slow down the reaction
Which of the following is a product in the reaction: Ca + 2H2O → Ca(OH)2 + H2? (1) Ca(OH)2 (2) H2 (3) Ca (4) H2O
Which of the following is a reactant in the combustion of methane? (1) CO2 (2) H2O (3) O2 (4) CH4
Fill in the blank: In a chemical equation, the substances written on the right side of the arrow are called _______.
Fill in the blank: In a chemical reaction, the substances formed at the end are called _______.
Fill in the blank: In a chemical reaction, the substances written on the left side of the arrow are called _______.
Fill in the blank: In the chemical equation Na + Cl2 → NaCl, Na and Cl2 are _______.
True or False: In every chemical reaction, the total mass of reactants is equal to the total mass of products.
True or False: In the reaction 2H2 + O2 → 2H2O, H2O is a reactant.
True or False: Products are always more than one in a chemical reaction.
True or False: The number of atoms of each element is the same in the reactants and products of a balanced chemical equation.
