Which best explains a primary reason for the inability of life to exist in Earth’s early atmosphere? A. There was insufficient energy from material collisions to change their density.
B. High temperatures during Precambrian time caused surface water evaporation. C. Volcanic eruptions and comet collisions added different gases to the atmosphere D. Available oxygen was used to help create an ozone layer within Earth’s atmosphere.
FAST PL >_

1.aluminum chloride (alcl3), and sodium hydroxide (naoh) can react to form aluminum hydroxide (al(oh)3) and sodium chloride (nacl).    you have 13.4 g of aluminum chloride and 10.0 g of sodium hydroxide. answer the following questions: •what is the balanced equation for this reaction? •if you use all 13.4 g of aluminum chloride, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •if you use all 10.0 g of sodium hydroxide, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •how many grams of aluminum hydroxide will actually be made?     which reagent is limiting? explain your answer.

Word equation for k(s) +h2o(l) yield koh (aq) + h2

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves