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18 Nov 2019
14 Question Detals Calcium hydride reacts with a vast excess of water to form cakium hydroxide and hydrogen gas. (See the periodic table.) (a) write a balanced chemical equation for the reaction. (Use the lowest possible coefficients. Include states-ol matter under SATP conditions in your answer.) (b) How many grams of calcium hydride are needed to form 7.841 g of hydrogen? Automotive air bags infiate when sodium azide, NaNs, rapidly decomposes to its component elements. (See the periodic table and the table of physical data.) 2 NaN3(s) â 2 Na(s) + 3 N2(g) (a) How manry moles of Nz are produced by the decomposition of 2.00 mol of NaN? (b) How many grams of NaN3 are required to form 15.0 g of nitrogen gas? (c) How many grams of NaNg are required to produce 15.o ft3 of nitrogen gas, about the size of an automotive air bag, if the gas has a density of 1.25 g/L? i6. Question Details BL813 3.R06s (3006304) A piece of aluminum foil 1.29 cm square and 0.S36 mm thick is allowed to react with bromine to form aluminum bromide (a) How many moles of alaminum were used? (The density of aluminum is 2.699 g/cm.) mol (b) How many grams of aluminum bromide form, assuming the aluminum reacts completely?
14 Question Detals Calcium hydride reacts with a vast excess of water to form cakium hydroxide and hydrogen gas. (See the periodic table.) (a) write a balanced chemical equation for the reaction. (Use the lowest possible coefficients. Include states-ol matter under SATP conditions in your answer.) (b) How many grams of calcium hydride are needed to form 7.841 g of hydrogen? Automotive air bags infiate when sodium azide, NaNs, rapidly decomposes to its component elements. (See the periodic table and the table of physical data.) 2 NaN3(s) â 2 Na(s) + 3 N2(g) (a) How manry moles of Nz are produced by the decomposition of 2.00 mol of NaN? (b) How many grams of NaN3 are required to form 15.0 g of nitrogen gas? (c) How many grams of NaNg are required to produce 15.o ft3 of nitrogen gas, about the size of an automotive air bag, if the gas has a density of 1.25 g/L? i6. Question Details BL813 3.R06s (3006304) A piece of aluminum foil 1.29 cm square and 0.S36 mm thick is allowed to react with bromine to form aluminum bromide (a) How many moles of alaminum were used? (The density of aluminum is 2.699 g/cm.) mol (b) How many grams of aluminum bromide form, assuming the aluminum reacts completely?
Irving HeathcoteLv2
11 Mar 2019