Chemistry, 19.08.2021 20:50, gkasshy334

If potassium has atomic number 19 how many electrons does it have?

Answers: 2

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 14:30, Crxymia

Amixture that has two or more substances that are spread out evenly is called a. compound b. heterogeneous c. substance d. homogeneous

Answers: 1

continue

Chemistry, 22.06.2019 19:30, liyahlanderson2232

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!

Answers: 2

continue

Chemistry, 22.06.2019 23:00, lufung8627

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]

Answers: 1

continue

Chemistry, 23.06.2019 01:00, carson9373

Wind and moving water provide energy. chemical mechanical thermal none of the above