A substance releases heat when it changes from

a. liquid to solid

b. solid to gas

c. liquid to gas

d. solid to liquid

A piece of copper is placed into silver nitrate. Given that the activity of copper is greater than that of silver, what will happen? A) A copper-silver compound will form. B) All three elements will combine to form a new compound.

Sodium Chloride (NaCl) has a molecular mass of 58 grams/mole. What is the molarity of a NaCl solution with a concentration of 232 grams/liter? 2.0 molar 4.0 molar 0.5 molar 3.0 molar

What are the three primary required elements which plants obtain from soil? oxygen nitrogen hydrogen phosphorus potassium trace elements

1. How do you balance chemical equations?

for these two atoms to form a stable molecule n2 how many electrons would have to be part of covalent bonds

Chen is testing the friction of three surfaces. He pushes the same ball across three different surfaces with the same force and measures the distance of each ball.

Name the folowing ionic compound MgCl2

How can substitution mutation affect a person's traits?

Which two compounds are electrolytes A) KOH and CH3COOH B) KOH and C5H12 C) CH3OH and CH3COOH D) CH3OH and C5H12

Explain why it is harder to remove an inner shell electron than a valence electron from an atom?