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masya89 [10]
3 years ago
7

If a substance cannot be seperated physically or chemically, it is ?

Chemistry
1 answer:
Dmitrij [34]3 years ago
4 0

Then it is a pure substance, or an element.

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What is used for mixing a small amount of chemicals together?
DENIUS [597]

a thin solid glass rod that is used in chemistry to combine substances. A stirring rod often has rounded ends and is about the length of a long straw.

<h3>What use serves the stirring rod?</h3>

A crucial component of lab apparatus for mixing chemicals and liquids for reactions is a long, thin stirring rod. Stirring rods are made of solid plastic, glass, or steel and are non-abrasive, chemically inert, and chemically resistant.

<h3>What is the name of the glass stirring rod?</h3>

Glass rod, also known as a stirring rod, stir rod, or solid glass rod, is frequently made of quartz and borosilicate glass. Its diameter and length can be modified to meet your needs.

<h3>Does filtration employ stirring rods?</h3>

When the liquid transfer procedure is paused, use a stirring rod to direct the liquid flow into the funnel and stop small amounts of liquid from dribbling down the beaker's outside.

learn more about stirring rod here

<u>brainly.com/question/9971891</u>

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7 0
2 years ago
2.38g of black copper(iii) oxide is completely reduced to by hydrogen to give copper and water. What are the number of atoms of
OleMash [197]

Explanation:

here is the answer bae. Feel free to ask for more

6 0
2 years ago
On headedama be prepared​
mixer [17]

Answer:

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3 0
2 years ago
I've been waiting for like 10 mins. Please answer this.
Degger [83]

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3 0
2 years ago
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What is the condensed structural formula of the product of the reaction of 2,7-dimethyl-4-octene with hydrogen and a metal catal
gavmur [86]
  The  condensed  structural  formula  of the  product  of the  reaction of 2,7-dimethyl-4-octene  with hydrogen   and metal  catalyst.

 Ch3 CH(CH3) CH2 CH2 CH2 CH2 CH(CH3) CH3

Equation  is  as follows

 CH3 CH(CH3) CH2  C=C CH2 CH(CH3)  CH3  +  H2
→

CH3 CH(CH3)CH2 CH2 CH2 CH2 CH(CH3) CH3

metal catalyst  example is nickel  and the name  of structure formed is 
2,7-  dimethyl octane
6 0
3 years ago
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