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jok3333 [9.3K]
3 years ago
7

Answers for cardiovascular system crossword puzzle

Chemistry
2 answers:
Aleks [24]3 years ago
7 0
Here the answers now brainlest

KengaRu [80]3 years ago
5 0
I dont know the answer

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Calculate the concentration of a solution that has 6.7 moles in a volume of 0.6 liters.
Yuri [45]

Answer:

11.2 M

Explanation:

Given data:

Number of moles = 6.7 mol

Volume of solution = 0.6 L

Concentration /Molarity = ?

Solution:

Molarity:

It is number of moles of solute in to per kg or litters of solution. It can be calculated by the following formula.

Molarity = number of moles / Volume in L

Now we will put the values in formula.

Molarity = 6.7 mol / 0.6 L

Molarity = 11.2 mol/L

Molarity = 11.2 M

6 0
3 years ago
Which pH corresponds with the acidic quality of the rainwater?<br> a.6<br> b.7<br> c.8<br> d.9
jeka94
The lower you go, the more acidic. The higher you go, the more alkaline. Your answer would most likely be 6.
8 0
3 years ago
An electrochemical cell is constructed such that on one side a pure lead electrode is in contact with a solution containing Pb2+
Ugo [173]

Answer:

-490.7 K

Explanation:

Given:

[Ni^2+]= 0.4 M

[Pb^2+]=0.002 M

∆V= -0.012 V

VNi= -0.250V

VPb= -0.126V

F= 96500 C

R= 8.314 JK-1 mol-1

n= 2

From

T= -nF/R [∆V-(VNi-VPb)/ln [Pb2+]/[Ni2+]]

T= 2(96500)/8.314[ (-0.012) -(-0.250) - (-0.126))/ln[0.002]/[0.4]

T= 23213.856(0.112/(-5.298))

T= -490.7 K

4 0
3 years ago
Does a helium balloon have a larger volume when it is heated or cooled?<br>​
Nadusha1986 [10]
Heated, it shrinks when cooled
8 0
3 years ago
My question is what is a cell?
frez [133]

The smallest functional and structural unit of an organism, usually microscopic and consisting of cytoplasm and a nucleus in a membrane.

5 0
3 years ago
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