Hi there I am having problems with a couple chem questions> I would greatly appreciate help. Here they are
An ionic compound forms when calcium (z=2-) reacts with iodine (z=53). If a sample of the compounds contains 8.2 x 10 to the 21st power calcium ions, how many iodide ions does it contain?
An ionic compound forms when lithium (z=3) reacts with oxygen (z=8). If a sample of the compound contains 8.3 x 10 to the 21st power lithium ions, how many oxide ions does it contain?
An ionic compound forms when calcium (z=2-) reacts with iodine (z=53). If a sample of the compounds contains 8.2 x 10 to the 21st power calcium ions, how many iodide ions does it contain?
An ionic compound forms when lithium (z=3) reacts with oxygen (z=8). If a sample of the compound contains 8.3 x 10 to the 21st power lithium ions, how many oxide ions does it contain?