subject
Chemistry, 04.10.2019 20:30 giannafilippi2006

Which of the following is a physical change?

explosion
rotting of food
evaporation
rusting of iron

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 14:50
Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!
Answers: 3
question
Chemistry, 21.06.2019 22:30
Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?
Answers: 1
question
Chemistry, 21.06.2019 22:30
Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.
Answers: 1
question
Chemistry, 22.06.2019 02:30
You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap
Answers: 3
You know the right answer?
Which of the following is a physical change?

explosion
rotting of food
evap...
Questions
question
Mathematics, 09.07.2019 09:00
question
Spanish, 09.07.2019 09:00