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Anton [14]
3 years ago
7

Which of the following represent a mixture?

Chemistry
1 answer:
7nadin3 [17]3 years ago
6 0
The answer is B NaCI solid
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Describe how hydrogen and oxygen form water
Gwar [14]

Answer:

The  hydrogen molecules combine with the oxygen molecules, 2 hydrogen molecules, and 1 oxygen molecules is the amount needed to make one water atom or molecule, whatever you want to call it.

7 0
3 years ago
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What decision did George make?
Nata [24]

Answer:

(2) never to be so irresponsible again

Explanation: hope this help!

8 0
3 years ago
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A.1<br><br> B.2<br><br> C.3<br><br> D.4 <br><br> Please help ASAP
maks197457 [2]

Answer:

3?

Explanation:

it states 3 elements names so im assuming thats it and not including the element symbols

8 0
3 years ago
An unknown gas has a volume of 20L at 140K. What is its volume at STP? Be sure to show the setup and the final
kramer

Answer:

 v₂ = 39L

Explanation:

Given parameters:

Initial volume of gas  = 20L

Initial temperature  = 140K

Unknown:

Final volume  = ?

Solution:

Since the standard temperature of any gas is 273K, the final temperature is this 273K;

 Applying Charles's law:

            \frac{v_{1} }{T_{1} } = \frac{v_{2} }{T_{2} }

v and T are volume and Temperature

           \frac{20}{140}   = \frac{v_{2} }{273}  

 

         v₂ x 140  = 20 x 273

         v₂ = 39L

         

6 0
3 years ago
A mixture is made by combining 1.62 lb of salt and 5.20 lb of water.
WINSTONCH [101]

Answer:

23.8

Explanation:

Formula

weight % = weight of solute/ weight of solution x 100

weight of solution = weight of salt + weight of water

weight of solution = 1.62 lb + 5.20 lb = 6.82 lb

weight % = 1.62 / 6,82 x 100

weight % = 0.238 x 100

weight % = 23.8

4 0
3 years ago
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