Chemistry, 27.01.2020 19:31 Blbyrd1287
1. an atom of silicon has a mass number of 28 and an atomic number of 14. how many protons and how many neutrons are in this atom? show your calculation.
Answers: 3
Chemistry, 22.06.2019 14:10
Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.
Answers: 2
Chemistry, 23.06.2019 10:30
When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?
Answers: 1
1. an atom of silicon has a mass number of 28 and an atomic number of 14. how many protons and how m...
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