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VashaNatasha [74]
3 years ago
6

Consider the "Macro" part of Virtual lab to determine if each of the following statements is True or False *

Chemistry
2 answers:
sergij07 [2.7K]3 years ago
5 0

Answer:

Salt does not conduct electricity because it is an insulator.

And the other is false

Dafna11 [192]3 years ago
5 0
False
And salt does not conduct electricity because it is an insulator
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Carbon tetra chloride = CCl4

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at 55 years what mass remains of a 200.0 g sample of a radioactive isotope with a half life of 10.0 years
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4.419 g

Explanation:

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200 g   *   (1/2)^5.5 = 4.419 g

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Which water usage uses the least amount of water in a year in the United States
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4 0
2 years ago
During an exothermic chemical reaction, a solid is consumed and a gas produced. a. Yes b. No c. Can't decide with information gi
kiruha [24]

<u>Answer:</u> The given statement is true.

<u>Explanation:</u>

For the reaction to be spontaneous, the Gibbs free energy of the reaction must come out to be negative.

The equation used to calculate Gibbs free energy follows:

\Delta G=\Delta H-T\Delta S

Exothermic reactions are defined as the reactions in which energy is released in the form of heat. The enthalpy change (\Delta H) of the reaction comes out to be negative for this kind of reaction.

Entropy change is defined as the change in the measure of randomness in the reaction. It is represented as (\Delta S). Randomness of gaseous particles is more than that of liquid which is further more than that of solids.

We are given:

A solid substance is converting into a gaseous substance.

\text{Solid}\rightarrow \text{Gas}

As, the entropy is increasing. So, the entropy change is positive.

Thus, the above reaction is spontaneous.\Delta G=-ve-(+ve)\\\\\Delta G=-ve

Hence, the given statement is true.

4 0
4 years ago
Why are hydrogen bonds the strongest of the intermolecular forces?
valentinak56 [21]
The correct answer is c. 
answer b is incorrect <span />
4 0
3 years ago
Read 2 more answers
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