When a radioactive sample decays for 2 half-lives the amount remaining will be of the original?

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms

Type the correct answer in each box. balance the chemical equation.__ n203 ➡️ __ n2 +__ o2