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noname [10]
3 years ago
14

Which of the following is a mixture?

Chemistry
1 answer:
Ne4ueva [31]3 years ago
4 0
It’s water vapor, does this help?
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What is the concentration of a solution formed by diluting 25.0 ml of a 3.2 M NaCl solution to 135.0 ml?
Irina-Kira [14]

Answer:

B) 0.59 M NaCl.

Explanation:

  • It is known that the no. of millimoles of NaCl before dilution = the no. of millimoles of NaCl after dilution.

∵ (MV) before dilution = (MV) after dilution.

<em>∴ M after dilution = (MV) before dilution / V after dilution </em>= (3.2 M)(25.0 mL)/(135.0 mL) = <em>0.5926 M ≅ 0.59 M.</em>

4 0
3 years ago
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The net ionic equation for the reaction between aqueous nitric acid and aqueous sodium hydroxide is _______.
ValentinkaMS [17]
HNO₃(aq) + NaOH(aq) → NaNO₃(aq) + H₂O(l)

H⁺ + NO₃⁻ + Na⁺ + OH⁻ → Na⁺ + NO₃⁻ + H₂O

H⁺ + OH⁻ → H₂O   (the net ionic equation)
8 0
3 years ago
20 points
ArbitrLikvidat [17]
The answer is Na+ Cl- and F+. Hope this helps!!!
8 0
3 years ago
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If an equal number of moles of the weak acid HF and the strong base KOH are added to water, is the resulting solution acidic, ba
s344n2d4d5 [400]

Answer:

Being a weak acid and a strong base, where it is diluted in a neutral medium such as water, the basic medium predominates, almost alkaline pH.

Explanation:

The acidity of the solution, being weak, means that its pH is not so low, therefore it will be easier to reach the values of 7 or 7 where alkalinity or basity is indicated.

6 0
3 years ago
Where would you find water on the ph scale?
vladimir2022 [97]

Answer: between 6.5 and 8.5

Explanation:

As shown in my science book it appears in the ph scale

5 0
1 year ago
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