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lys-0071 [83]
4 years ago
9

Chemical changes make new materials and tend not to be readily reserved. Physical changes do not make new materials and tend to

be readily reserved. Which of the following is a chemical change?
A. the evaporation of a rain puddle

B. frying an egg

C. ice cracking a milk bottle

D. melting butter
Chemistry
2 answers:
iogann1982 [59]4 years ago
8 0
<span>Chemical changes result in the formation of new substances, and the changes that occur cannot be reversed (at least without other chemical changes). The heat from frying an egg causes the egg's protein to change permanently in texture and in appearance through a process called denaturing.

The answer is B. Frying an egg.
</span>
Bogdan [553]4 years ago
7 0
The answer is B. Frying an egg.
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Hydrogen

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Explanation:

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Moles of propylene = \frac{43g}{42g/mol}=1.024 mol

1 mole = N_A =6.022\times 10^{23} molecules/ atoms

Units of ethylene = 2.036 mol\times N_A

Units of propylene = 1.024 mol\times N_A

a) Fraction of ethylene units:

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b ) Fraction of propylene units:

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4 years ago
What is the name for this type of reproduction?​
mario62 [17]

Answer:

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Reproduction is defined as the production of individuals of the same species, that is the next generation of the species.

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Asexual reproduction involves only one parent and the offspring is

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