Chemistry, 13.02.2020 05:29 mparra4761
Why was it significant that amino acids were produced from a mixture of methane gas, hydrogen gas, ammonia, and water vapor?
Answers: 1
Chemistry, 22.06.2019 04:00
What layer of the atmosphere is directly above the troposphere?
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Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
Chemistry, 23.06.2019 00:00
What is the approximate mass of 25 cm3 of silver, if the density is 10.5 g/cm3? a. 0.42 g b. 2.4 g c. 42 g d. 260 g
Answers: 1
Why was it significant that amino acids were produced from a mixture of methane gas, hydrogen gas, a...
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