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Kamila [148]
3 years ago
7

Explain why you usually can't use just a single spectrum line to confirm the identity of an element

Chemistry
1 answer:
Agata [3.3K]3 years ago
8 0
You can't usually just use a  single spectrum line to confirm the identity of an element because there are cases that the emission line id not clearly defined.  When the emission line is very weak compared to surrounding noise, in which case the more datapoints you have to build up confidence for the existence of a particular emission spectra, the better.
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Which type of property can be observed only by changing a substance into a different substance? A. intensive property B. extensi
Scorpion4ik [409]

The answer would be D because a chemical property is Burning is a chemical property and a chemical property is any of material's properties that becomes evident during or after a chemical reaction that is any quality that can be established only by changing a substance's chemical identity.

i hope i helped you out and i hope you did great and i am sorry if i am too late

3 0
3 years ago
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The reaction na 3po 4( aq) 3 agno3( aq) → ag 3po 4( s) 3 nano 3( aq) is best classified as a(n):_____.
Ugo [173]

The reaction  Na_{3} PO_{4} ( aq) +3AgNO_{3} (aq) → Ag_{3} PO_{4} ( aq) +3NaNO_{3} (aq) is best classified as double displacement reaction.

Those reaction in which two compounds react by exchanges of ions to form two new compounds is called  double displacement reaction. The easiest way to identify double displacement reactions is to check to see whether the cations exchanged anions with each other  or not . Always balanced chemical equation is used to determine.

There are three types of double displacement reaction which is given as,

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The real world example of double displacement reaction is combining vinegar and baking soda to create homemade volcano.

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6 0
1 year ago
When people conserve electricity, power plants do not need to produce as much electricity because there is less demand for it.
almond37 [142]

True

Explanation:

When people conserve electricity, power plants do not need to produce as much electricity because there is less demand for it.

This very correct.

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  • Less coal and fuel would be used and power plants do not need to produce as much electricity.
  • Most electricity produced in power plants are often wasted due to idle appliances consuming the bulk of them.
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5 0
3 years ago
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grandymaker [24]

The density of silver is 10.5 g/cm3.

8 0
3 years ago
___ may be rinsed over materials to was off explosive residue. A) water B) bleach C) acid D) acetone
Sergio [31]

Answer: D.

Explanation: D. Acetone, Acetone may be rinsed over materials to wash off the explosive residue.

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3 years ago
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