3 years ago

Water contrasts on freezing ?

1 answer:

8 0

No. When water first begins to cool down, it contracts. However, as it gets colder and eventually freezes, it begins to expand.

You can test this by freezing water in a water bottle: when you take it out of the freezer, the cap might have popped off or cracks may have formed in the sides of the bottle.

Answer: Water expands when frozen, not contracts.

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I think they test ideas about chemical evolution by doing experiments. Hope this helps

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One of the many remarkable enzymes in the human body is carbonic anhydrase, which catalyzes the interconversion of carbon dioxid

natka813 [3]

Answer:

Enzyme is carbonic anhydrase

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Explanation:

An enzyme is used by a living organism as a catalyst to perform a specific biochemical reaction.

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3 years ago

Draw a structure for an alcohol that exhibits a molecular ion at M+ = 74 and that produces fragments at m/z = 59, m/z = 56 and m

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Answer:

Please refer to the attachment below for answer and explanation.

Explanation:

Please refer to the attachment below for answer and explanation.

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3 years ago

How many moles of ions would you expect in an aqueous solution containing one mole of chromium(III) chloride? Hint: write out th

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Answer:

Four

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One mole of AlCl₃ produces 1 mol of Al³⁺ and 3 mol of Cl⁻.

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2 years ago