6 Questions
What are the substances listed on the left side of a chemical equation called?
Reactants
What are the products of the chemical equation CH4 (g) + 2O2 (g) -> CO2 (g) + 2H2O (l)?
CO2 (g) and 2H2O (l)
What is the reaction type of the equation Cr2O3 + Mg -> Cr + MgO?
Redox reaction
What is the balanced chemical equation for the reaction where magnesium reacts with oxygen to yield magnesium oxide?
2Mg + O2 -> 2MgO
Is the reaction between magnesium and oxygen endothermic or exothermic?
Exothermic
What is the heat of formation of oxygen?
0 kJ/mol
Test your knowledge on chemical equations by filling in the blanks. Identify the substances listed on the left and products on the right of a chemical equation, circle coefficients, underline subscripts, and determine states of matter for molecules.
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