The atomic number of magnesium (mg) is 12. this is also the number of which of the following?

The minerals found in bones are deposited by living cells called

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?

Which is true about metals used for jewelry, such as platinum and gold? a. they have low flammability. b. they have low reactivity. c. they have high flammability. d. they have high reactivity.