Ineed the amount of rain in tundra

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2