Chemistry, 07.07.2021 16:50 Mathcat444
PLEASE HELP
1. Which of the combinations in the lab activity had indications that a chemical change occured? Defend your argument with evidence.
2. Which of the combinations in the lab activity had indications that a physical change occured? Defend your argument with evidence.
3. Are all physical changes reversible? Explain your answer using an example you've observed in your everyday life.
4. Give an example of something you've observed in your everyday life that is a chemical reaction. How did you know it was a chemical reaction?
Answers: 3
Another question on Chemistry
Chemistry, 22.06.2019 01:00
How can you use chemical equations to predict the products of the reaction you can carry out?
Answers: 1
Chemistry, 22.06.2019 04:00
Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ
Answers: 3
Chemistry, 22.06.2019 10:40
Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3
Answers: 1
Chemistry, 22.06.2019 19:40
What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles
Answers: 2
You know the right answer?
PLEASE HELP
1. Which of the combinations in the lab activity had indications that a chemical change...
Questions
History, 25.10.2019 04:43
Mathematics, 25.10.2019 04:43
Mathematics, 25.10.2019 04:43
Mathematics, 25.10.2019 04:43
Mathematics, 25.10.2019 04:43
English, 25.10.2019 04:43
Mathematics, 25.10.2019 04:43
Chemistry, 25.10.2019 04:43
