Rachel is using a bunsen burner to heat a solution. which of the following would let her control the rate of reaction in the solution? a. replacing the amount of flammable gas used with different rates b. controlling the amount of air entering the combustion tube c. placing the burner in open surroundings

What is involved in redox reactions

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?