Unit 8 Review
Quiz by Jennifer Davis
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9 questions
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- Q1What happens to the reactants of a chemical reactionsome atoms are lost to the reactionthe atoms are changed to new elementsthe atoms are moved and re-bonded to form the productsthe atoms have new identities and chemical properties60s
- Q2What is the coefficient representsThe number added to both elementsThe number of the second elementThe number of the first elementThe number of molecules60s
- Q3When a combustion reaction occurs what is always present?Carbon + Oxygen ---> Carbon Dioxide + WaterFireHydrocarbon + Oxygen --> Carbon dioxide + waterHydrocarbon + Oxygen ---> smoke + ash60s
- Q4In a synthesis reaction how many products are there?132060s
- Q5When an Acid/Base Reaction occurs what are the products?A salt and waterWater and a covalent compoundHClNaOH60s
- Q6The oxidation number of any element in a compound is equal to?It's atomic numberIt's chargeIt's massthe subscript60s
- Q7What type of reaction is NEVER a redox reaction?Double ReplacementDecompositionSynthesisCombustion60s
- Q8What type of reaction has an element and a compound as both reactants and products?Double ReplacementSynthesisSingle ReplacementDecomposition60s
- Q9A precipitation reaction looks like?(aq) + (s) --> (aq) + (aq)(aq) + (aq) --> (l) + (aq)(aq) + (aq) --> (s) + (aq)(aq) + (aq) --> (aq) + (g)60s