Write the formula for the compound formed when the sulfate anion (SO42−) combines with a cation from each of the following elements: (a) zinc; (b) lithium.

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)