Answer:
NaCl is the one of the example of ionic compound because na conducts positive charge and CL conduct negative charge
One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.
Answer:
true
Explanation:
you can't change it back, it's chemically changed
