A cube measuring 2cm on each side weight 5g Calculate it’s density. D=m/V
D=5g/2cm^3
D=2.5g
This is what I did

B. Draw the density column to show where the cube would be in a cylinder with gasoline corn syrup:

7. A block has a mass of 20g and measures 2cmX4cmX2cm, will it sink or float in gasoline?

8. A hollow iron cube has measures 5cm on each side and has a mass of 20g. Will the iron cube float in water?

What type of reaction is zn + cucl2 → cu + zncl2?

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.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.