Classify each one of these examples as a physical or chemical change. give a reason (observation) of why each example is a specific type of change.
question:
a. the teacher puts a sugar cube into a container of warm water. eventually the sugar cube is no longer visible. what type of change is this and why? (2 points)
b. the teacher puts vinegar into a small container of baking soda. the combined substances begins to fizz and bubble. what type of change is this and why? (2 points)
Answers: 1
Biology, 21.06.2019 13:30
Q1.8. continuing your studies, you perform a transplant experiment. you chisel up multiple rocks from the upper intertidal zone, each holding 10 individuals of species a, and move them to the lower intertidal zone among individuals of species c. you count the number of individuals of all species on the rocks every day for 30 days. based on your findings, what can you conclude? (remember that all 3 species settle in this zone at equal rates.)
Answers: 3
Biology, 22.06.2019 02:40
How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.
Answers: 1
Biology, 22.06.2019 13:00
As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. a. is decreased b. is increased c. moves closer to equilibrium d. is unchanged
Answers: 3
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