Chemistry, 09.12.2020 14:00 gshreya2005
Make a He atom with a mass of 4. How many protons did you put in the nucleus?
Make a Li atom with a mass number of 7. How many electrons did you place in the outermost orbital
(ring)?
Make a N atom with a mass number of 14. How many neutrons are in the nucleus?
Make a B atom with a mass number of 11. How many electrons did you put in the second orbital (ring)?
Answers: 2
Chemistry, 22.06.2019 00:00
How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.
Answers: 1
Chemistry, 22.06.2019 01:30
When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)
Answers: 2
Chemistry, 22.06.2019 14:50
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.
Answers: 1
Chemistry, 22.06.2019 15:00
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
Answers: 2
Make a He atom with a mass of 4. How many protons did you put in the nucleus?
Make a Li atom with a...
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