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Crank
1 year ago
13

A mixture consists of sand and an aqueous salt

Chemistry
1 answer:
timofeeve [1]1 year ago
4 0
The right answer for the question that is being asked and shown above is that: "(1) Evaporate the water, then filter out the salt." A mixture consists of sand and an aqueous salt <span>solution. The procedure that can be used to separate </span>the sand, salt, and water from each other is to e<span>vaporate the water, then filter out the salt.</span>
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Match each situation below to a letter on the illustration.
Mnenie [13.5K]

Answer:a

Explanation:

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1 year ago
The data in the table below were obtained for the reaction: 2clo2 (aq) + 2 oh- (aq) --&gt; clo3- (aq) + clo2- (aq) + h2o (l) exp
SVETLANKA909090 [29]
Lets organise the data given in the question
                [ClO₂] (m)       [OH⁻] (m)        initial rate (m/s)
                  <span>0.060              0.030               0.0248
</span><span>                  0.020              0.030               0.00276
</span><span>                  0.020              0.090                0.00828
rate equation as follows 
rate = k [</span>ClO₂]ᵃ [OH⁻]ᵇ
where k - rate constant 
we need to find order with respect to ClO₂ therefore lets take the 2 equations where OH⁻ is constant.
1) 0.00276 = k [0.020]ᵃ[0.030]ᵇ
2) 0.0248 = k [0.060]ᵃ[0.030]ᵇ
divide first equation from the second
0.0248/0.00276 = [0.060/0.020]ᵇ
8.99 = 3ᵇ
8.99 rounded off to 9
9 = 3ᵇ
b = 2
order with respect to ClO₂ is 2
3 0
1 year ago
A solution is prepared by diluting 50.00 ml of 2.575 m solution of hno3 to 250.0 ml. what is the molarity of the resulting solut
larisa [96]
Thank you for posting your question here at brainly. Below are the choices that can be found elsewhere:

12.88 M 
<span>0.1278 M </span>
<span>0.2000 M </span>
<span>0.5150 M
</span>
Below is the answer:

<span>5 times diluted (250/50),so 2.575/5=0.515 M
</span>
I hope it helps. 
8 0
1 year ago
Read 2 more answers
A sample of pure iron has a mass of 5.00 g. Calculate its volume.
olga55 [171]
<span>It's volume is 0.48 cm3Specific </span>
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Calculate the internal energy of 2 moles of argon gas (assuming ideal behavior) at 298 K. Suggest two ways to increase its inter
Dominik [7]
I hope this helps you.

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2 years ago
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