If 4 grams of the P&G Purifier are used to treat 10 liters of water, then how much purifier is needed to treat 500 mL of water.

Can someone me with questions 15 to 17 plz.

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.