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soldier1979 [14.2K]
3 years ago
13

Is vinegar an element, compound or mixture?

Chemistry
1 answer:
mariarad [96]3 years ago
8 0
Vinegar is a mixture of Ethanoic acid and water(and maybe dye).

It is a mixture, not a compound nor an element.
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Josie see's lightning off in the distance. A few seconds later she hears thunder. What can Josie conclude?
ycow [4]
The answer is b) light waves travel faster than sound waves. 
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3 years ago
How many grams of NaCI per kilogram of water are present in a 2.7 molal aqueous solution​
navik [9.2K]

Answer:

157.79 g

Explanation:

The definition of molality is:

  • molality = moles of solute / kilogram of solvent

This means that in a 2.7 molal solution, there are 2.7 moles of NaCl per kilogram of water.

So now w<u>e convert those 2.7 moles of NaCl to grams</u>, using its <em>molar mass</em>:

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5 0
3 years ago
Heelp
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Balanced:
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2. </span><span>K2O + H2O ---> 2KOH
3. </span><span>MgO + H2O ---> Mg(OH)2
4. </span><span>CaO + H2O ---> Ca(OH)2
5. </span><span>SO2 + H2O ⇄ H2SO3
6. </span>SO3 + H2O ---> H2SO4
All except by 2 were balanced.
7 0
3 years ago
What is the maximum amount in moles of P2O5 that can theoretically be made from 176 g of O2 and excess phosphorus?
Strike441 [17]

Answer:

<em>2</em><em>.</em><em>6</em><em>0</em><em> </em><em>mol</em><em>2</em>

Explanation:

2.60mol2 is ur answer

5 0
3 years ago
Laws differ from theories because laws do not provide
o-na [289]

Answer:

C. An explanation

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