GIVING 5 STARS AND BRAINLIEST IF YOU ANSWER FIRST AND CORRECTLY!! How many atoms does H2SO4 have?

Find the mass in grams of hydrogen gas produced when 14.0 moles of hcl is added to an excess amount of magnesium.

50 pts plz what is the physical state of matter of baking soda.

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount