Guard cells:

contain chlorophyll

absorb light energy

control the size of stomata

split water into hydrogen and oxygen

Which of these elements is unlikely to have a reaction with any element or compound? rubidium (Rb) magnesium (Mg) cobalt (Co) argon (Ar)

Which transition metals are in pale pink paint?

Explain how the atoms of one element differ from those of another element. explain how the atoms of one isotope differ from those of other isotopes of the same element

What is the relationship between the concentration of particles in a solution and the solution's vapor pressure? As solute concentration increases, vapor pressure increases. As solute concentration increases, vapor pressure decreases.

What is the molar mass of a compound if 25.0 g of the compound dissolved in 750. Ml gives a molarity of 0.290 m?

Which substance, when dissolved in water, forms a solution that conducts an electric current

Room has a dimension of 10ft x 20 ft x 8 ft. What is the volume of the room in cubic yards if 1 yard = 3ft

Which of the following best describes a mixture in which ionic compounds are dissociated in solution? a. ion solution b. aqueous solution c. hydraulic solution d. hydrochloric solution

An iceberg has a volume of 8925 ft3. is the mass in kilograms of the iceberg?

Which of the following is responsible for the cohesive property of water? A. Covalent bonds between the hydrogen atoms of two adjacent water molecules B.