Use the word bank below to answer the questions that follow:
chemical
mixture
heat cap...
Chemistry, 26.04.2021 21:20 stefan19367
Use the word bank below to answer the questions that follow:
chemical
mixture
heat capacity
homogeneous viscosity sublimation
physical property compound chemical formula
substance density
mass
temperature
pressure
heterogeneous
The ratio of the mass of a substance to its volume is called
Answers: 2
Chemistry, 21.06.2019 21:00
The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.
Answers: 2
Chemistry, 22.06.2019 11:00
Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
Answers: 1
Chemistry, 22.06.2019 18:10
Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
Answers: 1
Physics, 23.08.2019 20:10
History, 23.08.2019 20:10
Mathematics, 23.08.2019 20:10
English, 23.08.2019 20:10
History, 23.08.2019 20:10
Mathematics, 23.08.2019 20:10
Mathematics, 23.08.2019 20:10
Mathematics, 23.08.2019 20:10
Mathematics, 23.08.2019 20:10