What are the three states in which most matter occurs

If two objects at different te,peraure are in contact with each other what happens to their temperature

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

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