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jasenka [17]
3 years ago
9

Which of the following is a chemical change?

Biology
2 answers:
irga5000 [103]3 years ago
8 0
The answer is letter D!
Dmitriy789 [7]3 years ago
3 0

Answer:

D. silver tarnishing as the silver metal reacts with sulfur​

Explanation:

A chemical change occurs when the identity of a substance is changed. Silver tarnishing is a chemical change because silver and sulfur react to form a new substance, silver sulfide. In the other examples, the substances have not changed their identity and only physical changes have occurred.

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In a certain plant, yellow leaves are dominant and red leaves are recessive. A plant with genotype Yy and a plant with Yy are cr
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Answer:

One offspring would have red leaves.

Explanation:

Given

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When two parent of genotype "Yy" are crossed with each other, the following offsprings are produced as shown in the punnet square below

Y y

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