When writing chemical equations for reversible reactions ... The top one points right, and the bottom one points left. The equation shows that ammonium chloride (a white solid) can break down ...

Each ammonia molecule contains one atom of nitrogen ... Test your knowledge of the different symbols used in chemical equations in this quiz.

Ammonia, used in fertilizer, is essential to our lives. Addis Energy is trying to make the chemical underground. Forget massive steel tanks—some scientists want to make chemicals with the help ...