Can y’all help me.

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

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Which formula can be used to calculate the molar mass of hydrogen peroxide