Which shows the correct order of stelps during the formation of an ionic bond

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

What is the percent composition of ca(oh)2? 37.7% ca, 53.0% o, and 10.3% h 45.5% ca, 38.2% o, and 16.3% h 54.0% ca, 43.0% o, and 2.7% h 64.7% ca, 27.0% o, and 8.3% h