2H2 + O2 2H20
How many moles of oxygen are consumed if 8 moles H2 are used?

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Is this a single replacement reaction or there is no