Biology, 02.02.2021 22:40 djmccarter
Rachel notices that many objects have rusted. Rusting is a chemical change that some metal and steel objects
undergo when they are exposed to oxygen. Which option best describes a chemical change?
A. a change from solar energy to chemical energy
B. a change in matter that produces one or more new substances
C. a change from a liquid state to a gas state
D. a change in form or appearance of matter
Answers: 3
Biology, 22.06.2019 02:30, sabrinarasull1pe6s61
Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels
Answers: 1
Biology, 22.06.2019 06:30, kenaygardel
To sciences do not agree on which type of grocery bag is better for the environment what is most likely to come out come out of the disagreement
Answers: 3
Biology, 22.06.2019 11:30, brayden2275
To store strawberries in sugar syrup, lucy placed them in a jar and covered them with sugar but did not add any water. do you think syrup will be formed? justify. a. no. since water is not added, there cannot be any syrup formation. b. no. the higher concentration of sugar on the outside will cause the water from the sugar to diffuse in the strawberry cells causing them to swell without formation of any syrup. c. yes. the higher concentration of sugar on the outside will cause the water from the strawberry to diffuse out resulting in syrup formation. d. yes. the sugar will melt over time and form the syrup.
Answers: 2
Rachel notices that many objects have rusted. Rusting is a chemical change that some metal and steel...
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