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Elanso [62]
3 years ago
15

An infrared light detector would be most beneficial to someone who investigates

Chemistry
2 answers:
Marat540 [252]3 years ago
8 0

Answer:

a

Explanation:

because it works for radiations

aliya0001 [1]3 years ago
5 0
A
Because it works for radiations
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Fix the formula for KF2<br> Write out the full correct formula?
Korvikt [17]

Given :

A chemical compound KF_2 .

To Find :

Fix the formula for KF_2 and write the full correct formula.

Solution :

We know, Potassium( K ) and Fluorine( F ) both have a valency of 1 i.e potassium can donate one electron and Fluorine can accept one electron only.

So, the chemical formula KF_2 is wrong because no element has filled electron.

Therefore, to stabilise the molecule, 1 Potassium atom should make a bond from 1 Fluorine i.e KF ( correct formula ) .

Hence, this is the required solution.

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The correct option is B.
Mendeleev was the one who originated the idea of arranging elements in the periodic table according to their chemical and physical properties. He left spaces in the periodic table and predicted the discovery of those elements that had not been discovered then. One of these elements is Gallium. He predicted that gallium is going to be a metal and he gave the properties that the element will possess. He also predicted that the element gallium will be placed under aluminium in the periodic table. 
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3 years ago
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How many valence electrons configuration of oxygen?
Ganezh [65]
Oxygen had 6 valence electrons
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3 years ago
Aspirin that has been stored for a long time may give a vinegar like odour and give a purple colour with FeCl3. What reaction wo
iVinArrow [24]

Answer:

See explanation

Explanation:

The IUPAC name of aspirin is 2-Acetoxybenzoic acid. It is composed of an acetoxy moiety and a benzoic acid moiety.

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Also, one of the products of this hydrolysis bears a phenol group which reacts with FeCl3 to give a purple color.

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