SOMEONE PLS HELP ITS FOR A TEST!! 4. An ion is an atom that has lost or gained protons.
O True
O False

5. Non-metals are on the right side of the periodic table and they tend to GAIN electrons in ionic bonds.
O True
O False

Can you me with this i really appreciate it

Which fact represents evidence for the big bang theory?

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.