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ELEN [110]
3 years ago
10

Perfume evaporating is it a chemical change or physical change

Chemistry
2 answers:
Vsevolod [243]3 years ago
7 0
This is a physical change: a change of state: from liquid to gas. 

This is not a chemical change, as no chemical reaction takes place: the substance is the same, but it changes the state at which it is in: there is no reaction with other chemical substances. 
uysha [10]3 years ago
7 0
Physical Change. It's a liquid to a gas
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maks197457 [2]

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4 0
2 years ago
Can someone please help me with this ASAP, this is due today, please please help me with this.
hichkok12 [17]

Answer:

this is fairly simple if you have a periodic table with you.

Explanation:

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5 0
2 years ago
how many moles of sodium are needed to react with sulfuric acid to produce 3.75 moles of sodium sulfate according to the followi
anastassius [24]
Hello!
<span>
You'll need to react 7,5 moles of Sodium with sulfuric acid to produce 3.75 moles of sodium sulfate
</span>
First of all, you need to balance the reaction. The balanced reaction is shown below (ensuring that the Law of Conservation of Mass is met on both sides):

2Na + H₂SO₄ → Na₂SO₄ + H₂

Now, all that you have to do is to use molar equivalences in this reaction applying the coefficients to calculate the moles of Sodium that you'll need:

molesNa=3,75moles Na_{2} SO_4* \frac{2 moles Na}{1 mol Na_{2} SO_4} =7,5 moles Na 

Have a nice day!
5 0
3 years ago
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aleksley [76]
Gas to liquid solids are going to break the liquid
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3 years ago
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8 0
3 years ago
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