For the reaction C + 2H2 → CH4, how many grams of hydrogen are required to produce 13.1 moles of methane, CH4 ? Round your answer to the nearest tenth. If your answer is a whole number like 4, report the answer as 4.0

When the volume and number of particles of a gas are constant which of the following is also constant

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What is the polyatamic ion of borate