A student measured another sample that was aluminum and found it had a mass of 8.1 g and a volume of 3 mL. What is the density of aluminum?

Find the protons, electrons and neutrons for strontium with a mass of 83

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

Solar energy is energy from the sun that is converted into thermal or energy. a. nuclear b. mechanical c. electrical d. chemical