3 years ago

Which of these is an example of a chemical change?

Biology

1 answer:

Korolek [52]3 years ago

8 0

Answer:

A.Dissolving salt in water

Explanation:

Hope it helps

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3 years ago

Can some explain DNA replication??

NeTakaya

Answer:

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2 years ago

A possible reaction for the degradation of the pesticide DDT to a less harmful compound was simulated in the laboratory. The rea

Bas_tet [7]

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This exercise is incomplete, missing the value of k (decay constant), which is equal to 4x10⁻⁸s⁻¹ at 25°C

The answer is 0.549 years

Explanation:

Given:

first order of reaction

k = 4x10⁻⁸s⁻¹

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3 years ago