Which of the following completes the sentence below?

the term boiling point refers to the change from
a.
solid to liquid.
b.
liquid to gas.
c.
gas to liquid.
d.
liquid to solid.

What is the number of moles in 15.0 g ash3?

What effect might melting sea ice have for people who live in coastal areas?

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next