The following reaction shows the products when sulfuric acid and aluminum hydroxide react.2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2OThe table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. Initial Mass and YieldSulfuric Acid Aluminum HydroxideInitial Amount of Reactant 35 g 30 g Theoretical Yield of Water from Reactant 12.85 g 31.77 g
What is the approximate amount of the leftover reactant?
8.2 g of sulfuric acid
9.8 g of sulfuric acid
11.43 g of aluminum hydroxide
13.76 g of aluminum hydroxide

Match the words in the left column to the appropriate blanks in the sentences on the right. (a) this is the law of definite proportions: all samples of a given compound, regardless of their source or how they were prepared, have proportions of their constituent elements. (b) this is the law of conservation of mass: in a reaction, matter is neither created nor destroyed. (c) this is the law of multiple (c) this is the law of multiple blank: when two elements form two different compounds, the masses of element b that combine with 1 g of element a can be expressed as a ratio of small whole-numbers. in this example, the ratio of \rm o from hydrogen peroxide to \rm o from water = 16: 8 \to 2: 1, a small whole-number ratio.: when two elements form two different compounds, the masses of element b that combine with 1 g of element a can be expressed as a ratio of small whole-numbers. in this example, the ratio of o from hydrogen peroxide to o from water = 16: 8 → 2: 1, a small whole-number ratio.