Consider the data [CH4] [O2] initial rate
M M M · s
−1
Exp 1 0.5 1.3 2.5 × 10−3
Exp 2 0.5 2.6 1.0 × 10−2
Exp 3 1.0 1.3 5.0 × 10−3
What is a correct rate law for the reaction?
1. k[CH4]−1 [O2] 2
2. k[CH4]
3. k[CH4][O2]2
4. k[CH4]−1 [O2]
5. k[CH4][O2]

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.