Which component is the oxidizing agent in the following chemical reaction?
4 Fe + 3 O2 ? 2 Fe2O3
a. rust
b. iron
c. water
d. oxygen
e. hydrogen
d
You might also like to view...
When small molecules are linked together to form larger molecules, the increase in entropy typically comes from:
A. light. B. heat. C. work. D. gas. E. enzymes.
Data in this figure suggest
A) butterfly populations are declining. B) butterfly habitat is degrading over time. C) butterflies are moving north over time. D) two species of butterflies are evolving over time.
Anabolic pathways _____
A) are usually highly spontaneous chemical reactions B) consume energy to build up polymers from monomers C) release energy as they degrade polymers to monomers D) consume energy to decrease the entropy of the organism and its environment
Which stage of the demographic transition results in the greatest population growth?
A. pre-industrial stage B. transitional stage C. industrial stage D. post-industrial stage E. post-apocalyptic stage