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4 years ago

Identify and describe 2 changes of state that release energy

Chemistry

1 answer:

soldier1979 [14.2K]4 years ago

4 0

Answer: All changes of state involve the transfer or energy

Explanation: i got my information from this site

https://www.esrl.noaa.gov/gmd/education/info_activities/pdfs/CTA_the_water_cycle.pdf

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Suppose you wish to apply SSA to a triangle, in order to find an angle

emmasim [6.3K]

First of all there nothing exists something like SSA congruence criterion, It is SAS Congruence where the sides of a Triangle and the angle between them is exactly same to the other two sides and angle between them of another triangle.

So the correct option is D.

Explanation:

If the Triangle has two sides equal, so the two angles there are equal. Also the other angle be some other definite angle. So

45+x+x=180(Considering definite angle to be 45)
2x=135
x=67.5

So there is only one solution to the triangle.

8 0

3 years ago

Which of the following is not among the three likely sources of heat during the formation of the Earth?

Romashka-Z-Leto [24]

Answer:

Constant volcanic eruption

Explanation:

5 0

3 years ago

Glven 4.62 mol of sodium hydroxide, NaOH, how many grams are present?

Vaselesa [24]

1 mole is equal to 1 moles NaOH, or 39.99711 grams.
Hope this helped

3 0

3 years ago

What happens to the molecules of a gas when the gas is heated?

sladkih [1.3K]

Answer of this question is D

5 0

3 years ago

Read 2 more answers

Which direction will the following reaction (in a 5.0 L flask) proceed if the pressure of CO_2(g) is 1.0 atm? CaCO_3(s) rightarr

storchak [24]

Answer:

d. To the left because Q > K_p

Explanation:

Hello,

In this case, for the given reaction:

$CaCO_3(s) \rightarrow CaO(s) + CO_2(g)$

The pressure-based equilibrium expression is:

$Kp=p_{CO_2}$

In such a way, since Kp is given we rather compute the reaction quotient at the specificed pressure of carbon dioxide as shown below:

$Q=p_{CO2}=1.0$

Therefore, since Q>Kp we can see that there are more products than reactants, which means that the reaction must shift leftwards towards the reactants in order to reestablish equilibrium, thus, answer is d. To the left because Q > Kp.

Regards.

6 0

3 years ago