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Andreas93 [3]
4 years ago
10

Pelase answer the question in the picture

Mathematics
1 answer:
olchik [2.2K]4 years ago
3 0

Answer:

B

Step-by-step explanation:

Notice that the equation shows KNO_3 going from a solid to an aqueous solution, which is dissolved. Entropy is essentially when a system becomes more disordered. Whenever we go from solid to liquid to gas, that's becoming more disordered because the molecules in the system are moving much more and in more random directions.

In addition, when we dissolve solids into water, that's another increase in entropy because we technically have a liquid component here and the molecules are now breaking apart.

So, the entropy here will increase.

Hope this helps!

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The perimeter of a rectangle is twice the sum of its length and it’s width . The perimeter is 22 meters and I it’s length is 2 m
lukranit [14]

Answer:

The length of this rectangle is 8m.

Step-by-step explanation:

The problem states that the perimeter of a rectangle is twice the sum of its length and it’s width. So

P = 2*l + 2*w

The problem also states that the perimeter is 22 meters. So:

P = 22

2l + 2w = 22.

Also, it states that I is the length and it is 2 meters more then twice it’s width. So

l = 2w + 2

What’s its length?

P = 22

2l + 2w = 22

2(2w+2) + 2w = 22

4w + 4 + 2w = 22

6w = 22 - 4

6w = 18

w = \frac{18}{6}

w = 3

The width is 3m. The length is in function of the width, so:

l = 2w + 2

l = 2*3 + 2

l = 8m

The length of this rectangle is 8m.

4 0
4 years ago
Pls help thank you!! 7th grade math
monitta

Answer:

Pls help thank you!! 7th grade math

4 0
3 years ago
Where does a median drawn from a vertex of a triangle intersect
olga2289 [7]
The median drawn from a vertex of a triangle intersects the opposing side at the mid point.

The three medians of a triangle intersect in a point named centroid, but that is another story.
6 0
3 years ago
Read 2 more answers
Please help me please !
Morgarella [4.7K]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

Option C

»»————- ★ ————-««  

Here’s why:

⸻⸻⸻⸻  

\text{\underline{The Slope Formula Is:}}\\\\m=\frac{y_2-y_1}{x_2-x_1}\\\\(x_1,y_1)\text{ and } (x_2,y_2)\text{ are two points given.}\\\\\text{We are given the points: } (3,5) \text{ and } (9,2).\\\\\text{\underline{The formula for the points should be:}}\\\\m=\frac{5-2}{3-9}, \text{where } (9,2) \text{ is }(x_1,y_1)\text{ and } (3,5) \text{ is } (x_2,y_2).

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

7 0
3 years ago
21x^5y^4-18x^7y^3+15x^2y^5
soldi70 [24.7K]

Do you want us to answer or simplify?

Simplify:=−18x^7  y^3 + 21x^5  y^4+ 15x^2 y^5

5 0
3 years ago
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