Compounds and reactions trivia

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• Which is generally a way to make a chemical reaction go faster?Compounds and reactions
• What do we call the solid that will not dissolve well in water and forms when two solutions are mixed?Compounds and reactions
• What do we call the substance newly made by a reaction, written to the right of the arrow?Compounds and reactions
• Which law states that the total mass of matter does not change across a chemical reaction?Compounds and reactions
• What is the chemical formula of water?Compounds and reactions
• What is the chemical formula of carbon dioxide?Compounds and reactions
• What do we call a pure substance made by different elements joining chemically?Compounds and reactions
• Which of these is a chemical change?Compounds and reactions
• Which of these substances is made of only one kind of element?Compounds and reactions
• Which equation for hydrogen and oxygen reacting to make water has the atoms balanced?Compounds and reactions
• When a chemical reaction happens, the total mass of a closed system falls below what it was before.Compounds and reactions
• An endothermic reaction absorbs heat energy from its surroundings.Compounds and reactions
• A chemical change can make a new substance with properties different from the original.Compounds and reactions
• A catalyst can lower the activation energy a reaction needs and so make it happen more readily.Compounds and reactions
• To balance a chemical equation you change the subscripts in the formulas so the atom counts match.Compounds and reactions
• The chemical formula of water is CO₂.Compounds and reactions
• Carbon dioxide is a compound formed by carbon joining with oxygen.Compounds and reactions
• The process in which a substance reacts with oxygen and gives off light and heat is called combustion.Compounds and reactions
• Ice melting into water is a chemical change, in which a new substance is made.Compounds and reactions
• When a chemical reaction happens, the total mass afterward is greater than it was before.Compounds and reactions