How many grams of oxygen are needed to completely burn 45 grams of C, H,? The molar mass of CHis 26.038 g/mol. The molar mass of O, is 31.998 g/mol. Round your answer to a whole number. 2C2H2(g) + 502(g) → 4CO2(g) + 2H,0 (1) 3​

If a certain battery supplies 1.0×108 electrons per second to the negative terminal and the battery contains 7.00 moles of electrolytic solution (which means the solution contains 7.00 moles of hso4), what fraction of the solution undergoes a chemical reaction each second

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled