Chemistry, 31.03.2020 00:25 22haydeabiy
An atom of an element has 54 protons. Some of the elements atoms have 77 neutrons, while other atoms have 79 neutrons. What are the atomic numbers and mass numbers of the two types of atoms of this element?
Answers: 3
Chemistry, 21.06.2019 13:30, martinez6221
Forests and meadows are often cut down to make way for farms or large number of new homes. what are some of the elements of ecosystems that are lost when plants in these areas are removed?
Answers: 2
Chemistry, 23.06.2019 05:00, rosezgomez97
Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.
Answers: 1
An atom of an element has 54 protons. Some of the elements atoms have 77 neutrons, while other atoms...
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