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aev [14]
2 years ago
8

........................

Chemistry
1 answer:
sweet [91]2 years ago
5 0

Answer:

no questions

it's just all dots here

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Express 0.08010 in exponential notation to the proper significant figures
nataly862011 [7]
This would be 8.010 * 10^-2
3 0
3 years ago
Examples of two substances being mixed and the ​
yKpoI14uk [10]

Answer:

ocean water liquid and steel solid

6 0
3 years ago
Which one of the following represents a decrease in entropy?
Leni [432]

Answer:

D

Explanation:

There are principally three states of matter. These are the solid, liquid and gaseous states. The gaseous state has the highest degree of disorderliness as gas particles can move randomly while the solid state has the highest level of compactness.

Hence, we need to be adequately fed with information as regards the phase change to know if entropy has decreased or increased.

A. is wrong

Evaporation is a change of state to the gaseous state meaning there is an increased entropy.

B. is wrong

Sublimation is a change of state which means a solid substance like iodine or naphthalene changes its state directly to the gaseous state. There is an increased entropy here too.

C is wrong

Melting of ice means going from ice block to liquid water. This is synonymous to going from the solid state to the liquid state which is an increased entropy

D is correct

Condensation involves going from the gaseous state to the liquid state. This means going from a less ordered state to a more ordered state. This is accompanied by an entropy decrease.

E is wrong

While there are some processes that increase entropy, we also have some process that decrease entropy.

7 0
3 years ago
A freighter ship carrying a cargo of uranium hexafluoride sank in the English Channel in late August 1984. The cargo of uranium
DiKsa [7]

Answer:

Heyo (Ish Mash Potato) XD

Explanation:

a freighter carrying a cargo of uranium hexafluoride sank in the english channel in 1984. the cargo of uranium hexafluoride weighed 2.25x10 to the eight power. kg and was contained in 30 drums, each having a volume of 1.62x10 to the sixth power L. what is the density in g/ml, of uranium hexafloride.

Hope Mr. Mash Potato Helped!!!

3 0
3 years ago
Read 2 more answers
The mixing of which pair of reactants will result in a precipitation reaction?
Maru [420]

Answer:

K2SO4(aq) + Ba(NO3)2(aq)

Explanation:

K2SO4(aq) + Ba(NO3)2(aq)= 2KNO3(aq) + BaSO4(s)

The reaction produces BaSO4

Which precipitates as the insoluble product and Soluble KNO3 solution

8 0
2 years ago
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