Which of the following is NOT an electrolyte? * A mercury
B cobalt(II) chloride
C sodium chloride
D hydrogen chloride (which dissolves in water to form hydrochloric acid)

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

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.