What is the percent mass/volume of sodium chloride solution made by dissolving 5.0 grams of sodium chloride in 40.0 ml of solution?

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

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

This statement about matter and its behavior is best classified as a