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elixir [45]
2 years ago
7

helppppp. which of the following statements regarding physical and chemical changes is true? a. both physical and chemical chang

es alter the atomic structure of a substance. b. neither physical not chemical changes alter the atomic structure of a substance. c. physical changes alter the atomic structure of a substance, while chemical changes do not. d. chemical alter the atomic structure of a substance, while physical changes do not. huryyyy
Chemistry
2 answers:
oksian1 [2.3K]2 years ago
8 0

Answer:

B

Explanation:

I did it

jasenka [17]2 years ago
4 0

Answer:

D. chemical alters the atomic structure of a substance, while physical does not

hope this helps!

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A certain metal M forms a soluble sulfate salt MSO, Suppose the left half cell of a galvanic cell apparatus is filled with a 3.0
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Answer:

E = 0.062 V

Explanation:

(a) See the attached file for the answer

(b)

Calculating the voltage (E) using the formula;

E = - (2.303RT/nf)log Cathode/Anode

Where,

R = 8.314 J/K/mol

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F- Faraday's constant = 96500 C/mol,

n = number of moles of electron = 2

Substituting, we have

E = -(2.303 * 8.314 *308/2*96500) *log (0.03/3)

   = -0.031 * -2

  = 0.062V

Therefore, the voltmeter will show a voltage of 0.062 V

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2 years ago
Which is the balanced equation for magnesium added to copper(i) chloride yielding copper and magnesium chloride?
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When ethyl-2-methylpropanoate is treated with sodium ethoxide in ethanol, there is no observable reaction. Explain this observat
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Answer:

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Explanation:

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Mechanistic pathway has been shown below.

8 0
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