Why do very few trees exist in a grassland ecosystem?

A.

not enough heat

B.

not enough topsoil

C.

not enough sunlight

D.

not enough precipitation

Is melting butter exothermic or endothermic?

Which element would be the most reactive with K? Br, Na, Ar, or O? And how do you know?

Which of the following is true regarding Keq? a. Equilibrium constants do not have units. b. The equilibrium constant is fixed for a given reaction at a specific temperature. c. It can be determined by the following equation [reactants]/[products].

List the four weather fronts and describe the resulting weather for each.

Any atom, ion, or molecule that can donate a pair of electrons to form a covalent bond is called

What does the periodic table displays

Consider the reaction: 2A (g) + B (g) →3C (g). When A is decreasing at a rate of 0.200 M⋅s-1, how fast is B decreasing?

2.70 feet is the same as how many cm?

Which two body systems contribute to acid-base balance of blood?

In which phase of matter do the molecules that make up the substance have the greatest kinetic energy