Match each term to its example. element compound ion isotopes cation anion a. an atom that has developed a positive charge b. sodium chloride (nacl) c. an atom that has lost or gained an electron d. two atoms of hydrogen, each with a different number of neutrons e. gold f. an atom that has lost or gained an electron

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!