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lapo4ka [179]
2 years ago
15

Do pure substances have the same chemical and physical properties

Chemistry
1 answer:
Darya [45]2 years ago
4 0
No, some impurities may alter the observed effects of a chemical reaction.. during a reaction other products may be produced, they may alter the MP or BP of the pure substance.  
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Does a true solution have water?
Alexandra [31]

Answer:

Solutions in water are especially common, and are called aqueous solutions. Non-aqueous solutions are when the liquid solvent involved is not water.

5 0
2 years ago
How many grams are in 4.5 moles of Li20
Rzqust [24]

134.5 grams in 4.5 moles of Li2O (lithium oxide).

3 0
3 years ago
A 12.630 g milk chocolate bar is found to contain 8.315 g of sugar. part a part complete how many milligrams of sugar does the m
kolezko [41]
Answer:
A 12.630 bar of chocolate contains 8315 milligrams of sugar

Explanation:
From the basics of conversion, we can find that:
1 gram is equal to 1000 mg
Using cross multiplication, we can find how many milligrams are present in 8.315 grams as follows:
1 gram .............> 1000 mg
8.315 grams ....> ?? mg
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Hope this helps :)
5 0
3 years ago
LolnnrjejahaushanakKababab
snow_lady [41]

Answer:

LolnnrjejahaushanakKababab

Explanation:

Source: Trust me bro

4 0
2 years ago
While finding the number of molecules of oxygen molecules present in 3.65 moles of Na2SO4 the conversion factor used would be
zvonat [6]

Answer

Avogadro's number: One mole of any substance contains 6.022×10²³ molecules

Explanation

While finding the number of moles of oxygen molecules present in 3.65 moles of Na2SO4 the conversion factor used would be Avodagro's number, which is

One mole of any substance contains 6.022×10²³ molecules.

8 0
1 year ago
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