Which changes will decrease the electric force between two positively charged objects? Check all that apply.

moving them closer together

moving them farther apart

adding electrons

removing electrons

adding neutrons

removing neutrons

How many moles of nitrogen gas are there in 16.8 L of this gas at STP?

If we mix 25 grams of sodium bromide with a large amount of potassium chloride, what will our theoretical yield of sodium chloride be? The equation to solve it is NaBr + KCl - > NaCl + KBr

An irregularly shaped Stone was lowered into a graduated cylinder holding a volume of water equal to 20.0 ml the height of the water Rose to 30.2 ml if the mads of the stone was 25.0g what was its density

The main difference between gases and liquids is that in gases A. the molecules are moving faster b. the forces between molecules are greater c. the distance between molecules are greater d. the molecules collide more frequently

A blank emission results in the release of energy without any apparent change in mass or nuclear charges

chromium can combine with chlorine to from corneum chloride which equation is a correct representation of this reaction

What is the atomic weight of a hypothetical element consisting of two isotopes, one with mass = 64.23 amu (26.0%), and one with mass = 65.32 amu? (a) 65.3 amu (b) 64.4 amu (c) 64.9 amu (d) 65.0 amu (e) 64.8 amu

Is this base a physical or chemical property?

Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong electrolyte. a) LiClO4 b) HClO c) CH3CH2CH2OH d) HClO3 e) CuSO4 f) C12H22O11

Give examples of temporaty physical change