The first plant to grow in new environments are usually

a. ferns and horsetails

b. grasses

c. liverworts

d. mosses and ferns

A boat Pulls a 60Kg water-skier with a force of 105 N, What is the skier's acceleration?

Which of the following is not a base? A: NH3 B. NaOH C. H3C6H5O7 D. KOH

What happens if more product is added to a system at equilibrium apex?

Calcium fluoride is 48.7% fluorine by mass. How many grams of calcium fluoride would contain 6.34 grams of fluorine?

7. How many minutes are there in 5 days?

What does a substance in solid fase has

What are the three requirements for an effective collision

What is the force applied when using a simple machine.

Select all that apply. when the products of a reaction have more energy than the reactants: the reaction is exothermic. the reaction is endothermic. the reactants gave up energy. the δh is positive.

How can you determine the number of valence electrons in an atom of a representative element?