Magnesium metal reacts with 0.100 L of 0.450 M hydrochloric acid to produce magnesium chloride and hydrogen gas. What is the mass of magnesium reacting with hydrochloric acid? Group of answer choices

54.7 g

2.19 g

1.09 g

0.547 g

109 g

Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature