The chemical equation for burning methane is shown below. CH4 + 202 → CO2 + 2H20
? 9
4.5 g 2.99 3.99
What mass of methane gas (CH) is required in order to follow the Law of
Conservation of Mass?
11.33g
6.83g
3.55g
2.35g

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

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )