Need help with this pleases
...
Answers: 1
Physics, 22.06.2019 10:00
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Physics, 22.06.2019 11:20
How to tell if a molecule is polar or nonpolar with electronegativity
Answers: 2
Physics, 22.06.2019 21:30
Contrast the force of gravity between these pairs of objects: 1-kg mass and a 2-kg mass that are 1 m apart; a 1-kg mass and a 2-kg mass that are 2 m apart; and two 2=kg masses that are 1 m apart. i dont understand.
Answers: 3
Mathematics, 12.10.2019 13:50
Physics, 12.10.2019 13:50
Mathematics, 12.10.2019 13:50
English, 12.10.2019 13:50
Chemistry, 12.10.2019 13:50
Chemistry, 12.10.2019 13:50
Mathematics, 12.10.2019 13:50
English, 12.10.2019 13:50
English, 12.10.2019 13:50
Mathematics, 12.10.2019 13:50