Ch. 14 Quiz Review
Quiz by Tracy
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11 questions
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- Q1What is the substance on the left side of the equation called?chemical eqautioncoefficientreactantsproducts30s
- Q2What is the substance that speeds up or starts a chemical reaction?reactantcatalystinhibitorproduct30s
- Q3The process in which one or more substances change to produce a new substance is a ____________________.physical changechemical formulachemical reactionphysical reaction30s
- Q4A substance that slows down a chemical reaction is called a(n) ________________________.reactantproductcatalystinhibitor30s
- Q5The substance or molecule that starts a chemical reaction is the _______________.productchemical equationchemical formulareactant30s
- Q6What type of reaction is caused when heat is releasedendothermicexothermic30s
- Q7The 2 in CO2 represents the _____________.coefficient of carbon dioxidesubscript for oxygensubscript for carbon dioxidecoefficient of oxygen30s
- Q8Methane has 1 carbon atom and 4 hydrogen atoms. What is the correct formula for this substance?CH44CHC4H4C4H30s
- Q9What is the law of conservation is mass?all equations are written left to rightatoms are never gained or lost in a reactionwe can create and destroy atoms during a reactionelements are paired with other elements30s
- Q10What is an example of an endothermic reaction?fireworks explodingphotosynthesisburning coalsodium and water30s
- Q11Is the following chemical equation balanced? 2CA + O2 ----2CaOFalseTrue30s