Grade 12 Chemistry ChallengeOnline version Alberta grade 12 chemistry quiz by Ogechukwu 1 Write the formula for Calcium Chloride a Cacl2 b Na2S04 c NO2 2 How many moles are in 18g of water? a 1 mol b 18 mol c 2 mol 3 Define limiting reagent. a It is a reactant that is completely used up first and limits the amount of product formed b reactant that is not completely used up first c None of the above. 4 State the difference between ionic and covalent bonding. a An ionic bond is electron transfer, while a covalent bond shares an electron. b An ionic bond shares an electron, and a covalent bond transfers an electron c None of the above 5 What is the molar mass of CH4? a 16g/mol b 2g/mol c 6g/mol 6 In a galvanic cell, electron flow from the _________ to the ___________ a anode to cathode b cathode to anode c None of the above 7 What is the difference between an alkane and an alkene? a An alkane has one single bond, while an alkene contains at least one double bond. b An alkene has one single bond, while an alkane contains at least one double bond c None 8 Mention one example of a polymer. a atom b nylon c ethanol 9 What is the name of the compound CH3-CH2-OH a thane b methanol c ethanol 10 what is at atom?
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