When hydrogen gas reacts with oxygen, water vapor is produced. If 9.4 grams of hydrogen is used, how many moles of oxygen
are required?

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned