Chemistry, 12.10.2020 14:01 AnActualTrashcan
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
An atom of gallium has 31 protons and a mass number of 70.
What is the atomic number for an atom of gallium?
31
35
39
70
Answers: 2
Chemistry, 22.06.2019 16:30
For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
Answers: 2
Chemistry, 23.06.2019 00:00
How many atoms or molecules are there in a mole of a substance?
Answers: 1
Chemistry, 23.06.2019 01:20
How can parts of a solution be separated by chromatography?
Answers: 1
ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
An atom of gallium has 31 protons and a mass number of 70...
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