Part C Using the Erlenmeyer flask and its contents from part A, continue with these steps:
1. Heat the flask on a hot plate or in a microwave oven. Gently swirl the flask at regular intervals
until the crystals of sodium acetate dissolve completely.
2. Make sure that all the sodium acetate is dissolved and no crystals remain inside the flask.
Once all the crystals are dissolved, remove the flask from the heat. A To avoid burns, be
careful when working with the hot plate and while handling the hot flask.
3. Allow the flask to cool for at least 30 minutes on a heat-resistant surface without disturbing it.
The flask should now be at or near room temperature.
Before it was heated, the flask and its contents were at room temperature. With regard to
appearance, how are the contents of the flask different from before they were heated and cooled?

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.

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.