Which statement about the noble gases is most reliable? a. the chemistry of the reactions of noble gases is not very interesting. b. the noble gases are some of the most beautiful elements. c. the noble gases are in the rightmost column of the periodic table. d. the history of the discovery of noble gases is dull.

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

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

How many molecules are in 6.0 moles of methane