Chemistry, 18.03.2021 02:30, dtovar4922
Which of the following is a pure substance?
Chlorine B. salt solution C. bronze D. salad dressing
What is the boiling point of pure water?
About 1000 C B. exactly 1000 C C. it varies D. slightly above 1000 C
Which is an example of a chemical change?
Water evaporating B. butter melting C. match burning D. powder being made
Which of these indicate a chemical change?
Color change B. temperature change C. gas-forming D. all of the above
Which of these is an impure substance?
Tap water B. gold C. carbon dioxide D. boron
Answers: 1
Chemistry, 22.06.2019 08:30, kkelley9223
How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same
Answers: 2
Chemistry, 22.06.2019 18:00, LuvieAnn1886
How is energy related to the change of state represented by the model? atoms gain energy as a solid changes to a liquid. atoms gain energy as a solid changes to a gas. atoms lose energy as a solid changes to a liquid. atoms lose energy as a solid changes to a gas.
Answers: 3
Which of the following is a pure substance?
Chlorine B. salt solution C. bronze D. salad dressing
History, 06.07.2019 21:40
History, 06.07.2019 21:40
History, 06.07.2019 21:40
Social Studies, 06.07.2019 21:40
Social Studies, 06.07.2019 21:40
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History, 06.07.2019 21:40
History, 06.07.2019 21:40