1.when molecules change state of matter from a liquid to a solid, then a. there is no change in the kinetic energy of the molecules. b. the kinetic energy of the molecules increases. c. the molecules stop moving. d. the kinetic energy of the molecules decreases. 2.timothy and kelsy put an ice cute on top of a sodium bicarbonate tab. over time, they witnessed bubbling coming from the place where the ice cube and tab meet. which of the following represents a similar kind of change in matter? a. baking a birthday cake for your mother. b. filling up a balloon with hot air. c. taking a glass of water and freezing it by placing it in the freezer d. your dog ripping up your homework. 3.an example of a chemical property is the a. mass of a substance per unit volume b. ability to dissolve in solution c. point where solid becomes liquid d. tendency to undergo oxidation
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Physics, 21.06.2019 12:40, goldenhawk239
In guinea pigs, assume black coat is completely dominant over white. to determine whether an unknown black guinea pig is pure or hybrid black, it should be crossed with bb, bb, bb
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Physics, 21.06.2019 22:30, ceceshelby646
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 1
Physics, 22.06.2019 10:00, sofiaisabelaguozdpez
Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?
Answers: 1
1.when molecules change state of matter from a liquid to a solid, then a. there is no change in the...
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