Decide which of the following salts will form acidic, basic, or neutral solutions when dissolved in water. (Hint: look at the acids and bases that formed them) For example: KCH3COO was formed in the reaction between KOH and CH3COOH. KOH is a strong base. Its conjugate acid, K , has negligible acidity and will leave the pH at 7.00, a neutral solution. CH3COOH is a weak acid, making its conjugate base, CH3COOa relatively strong weak base. It will produce a basic solution. Analyze the following salts in the same way: a) KF d) KCN b) NaNO3 e) RbI c) NH4NO3 f) Na2CO3

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.

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!