subject
Chemistry, 30.10.2020 19:40 skyrae05

An atom of potassium has 19 protons and 20 neutrons. Its mass number is

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 22.06.2019 09:00
An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh
Answers: 1
question
Chemistry, 22.06.2019 10:40
Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4nh3 (g) + 5o2 (g) → 4no (g) + 6h2o (g) also, a chemist finds that at a certain temperature the equilibrium mixture of ammonia, oxygen, nitrogen monoxide, and water has the following composition: compound pressure at equilibrium nh3 65.1atm o2 31.3atm no 62.7atm h2o 65.8atm compound pressure at equilibrium nh3 65.3 atm o2 7.79 atm no 12.1 atm h2o 65.8 atm calculate the value of the equilibrium constant kp for this reaction. round your answer to 2 significant
Answers: 2
question
Chemistry, 22.06.2019 12:30
What human activity increases beach erosion?
Answers: 2
question
Chemistry, 22.06.2019 13:00
Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table
Answers: 3
You know the right answer?
An atom of potassium has 19 protons and 20 neutrons. Its mass number is...
Questions
question
English, 29.01.2020 02:06
question
Mathematics, 29.01.2020 02:06
question
Mathematics, 29.01.2020 02:06
question
Mathematics, 29.01.2020 02:06