Which of the following statements is TRUE?
A.
Lower intensity exercise utilizes primarily carbohydrates.
B.
Higher intensity exercise utilizes primarily proteins.
C.
Higher intensity exercise utilizes primarily fats.
D.
Lower intensity exercise utilizes primarily fats.

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Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.