Chemistry, 20.02.2021 17:00 asiaemerlle
A student investigated temperature changes during a reaction. Figure 2 shows the apparatus the student usesWhat is the biggest error in this investigation. Suggest two improvements to the apparatus which would increase the accuracy of the experiment. [3 marks]
Answers: 2
Chemistry, 21.06.2019 21:00, HelenKellerwasaSlutt
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 06:00, Kjswagout5052
In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit
Answers: 2
Chemistry, 22.06.2019 12:40, valenzueladomipay09u
How does concentration affect reaction rate
Answers: 2
Chemistry, 22.06.2019 23:00, emilyphillips1681
If two identical atoms are bonded, what kind of molecule is formed
Answers: 1
A student investigated temperature changes during a reaction. Figure 2 shows the apparatus the stude...
English, 22.04.2020 04:06