subject
Chemistry, 27.01.2021 02:30 pokenerdz

Sarah gets ready for work every morning. When she gets up, she brushes her teeth, washes her face, and combs her hair. She folds her pajamas and makes her bed. For breakfast, she boils water to make tea and eats toast with peanut butter. She drives to work in her car, and when the sun shines brightly, she unfolds her sunglasses and puts them on. On this winter morning, she needs to turn on the defroster in her car to clear the windshield of ice. She crumples a piece of paper and throws it in a plastic bag she keeps in the car. As she parks her car at work and gets out of her car, she notices that it’s cold enough to see her breath. She hurries to the building to get out of the cold. 1. Based on the text above, list the instances of physical and chemical changes described.

2. Write your own scenario and include at least three instances of physical changes and three instances of chemical changes.

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 14:30
What state of matter is ice a. liquid b. element c. solid d. gas
Answers: 1
question
Chemistry, 22.06.2019 22:00
Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.
Answers: 3
question
Chemistry, 23.06.2019 00:20
4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound
Answers: 3
question
Chemistry, 23.06.2019 04:20
The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.
Answers: 1
You know the right answer?
Sarah gets ready for work every morning. When she gets up, she brushes her teeth, washes her face, a...
Questions
question
English, 12.08.2020 18:01
question
Mathematics, 12.08.2020 18:01
Questions on the website: 13722359