Chemistry, 18.10.2019 22:00 mikeeway33
12. a. why is nitrogen necessary for life? include the terms amino acids and proteins in your answer.
b. oxygen combines with nitrogen to form what types of chemicals that are used by plants?
c. why is phosphorus necessary for life?
d. phosphorus combines with oxygen to form what types of chemicals that are used by plants?
e. what does the polar nature of water molecules have to do with substances being able to dissolve in water?
f. why is the ability of substances to dissolve in water important for plants?
Answers: 3
Chemistry, 21.06.2019 22:00
Fission of uranium-235 products energy and a. isotopes of smaller elements b. isotopes of larger elements c. lighter isotopes of uranium d. heavier isotopes of uranium
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What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom
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Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.
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Chemistry, 22.06.2019 15:00
20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?
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12. a. why is nitrogen necessary for life? include the terms amino acids and proteins in your answe...
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