7. methane, ch, burns in oxygen gas to form water and carbon dioxide. wequation for this reaction? a. ch4+ o h2o co2b. ch4+ 40 2h20+ co2c. ch4 o2 h2o co2d. ch4+ 202 2h20 co2
8. how many atoms are present in 3 moles of chromium? c. 1.80 x 1024 atomsa. 6.02 x 1023 atomsb. 1.80 x 1023 atomsd. 52.00 atoms
9. how many grams of co2 are in 2.1 mol of the compound? a. 21.0 gc. 66.0 gb. 44.0 gd. 92.4 g

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.