Which of the following is true of all multi-step reactions?
A) They involve more than two reactant molecules.
B) They are endothermic.
C) they are exothermic.
D) The rate of reaction is determined by the slowest step.
D
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Many scientific advances have been made toward accurately collecting evidence for global climate change. Explain one technique used: (1 ) to measure changes that have occurred in atmospheric CO2 over the past 500,000 years; and (2 ) to measure the
long-past temperatures over this same period of time. What will be an ideal response?
What are two things governments can to do help rural areas?
What will be an ideal response?
Which list ranks the gases in the present-day atmosphere from most abundant to least abundant?
A) oxygen, carbon dioxide, nitrogen, and argon B) argon, nitrogen, oxygen, and carbon dioxide C) nitrogen, oxygen, argon, and carbon dioxide D) carbon dioxide, oxygen, nitrogen, and argon E) oxygen, nitrogen, argon, and carbon dioxide
Discuss the role of humans on global warming
What will be an ideal response?