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Dvinal [7]
3 years ago
6

Define alkanes and give examples

Chemistry
1 answer:
LenKa [72]3 years ago
3 0
<span>the simplest organic molecules, consisting of only carbon and hydrogen and with only single bonds between carbon atoms.
Ex. Methane, Ethan, Propane, Butane
</span>
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Names of the sugar acid produced by the oxidation of d-ribose
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3 years ago
Put the following in the correct chronological order from what happened first to what happened last.
Scilla [17]

Answer:

2-3-1-4

Explanation:

The astronomer Nicolaus Copernicus did not have a theory about the Earth revolving around the sun until he got into astronomy and began to study the patterns of the sun and the moon as well as reading other entries from previous astronomers. You can pretty much guess from there, he had to have the theory before proving it etc.  

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2 years ago
Which of these is the best definition of biotechnology??
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3 years ago
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How many mL of a stock 50% (w/v) KNO3 solution are needed to prepare 250 mL of a 20% (w/v) KNO3 solution?
Andre45 [30]

Answer:

100ml of a stock 50% KNO3 solutions are needed to prepare 250ml of a 20% KNO3 solution.

Explanation:

In the given question it is mentioned that

     S1=50%

      V2=250ml

      S2= 20%

We all know that

                     V1S1=V2S2

                     ∴V1=  V2×S2÷S1

                     ∴V1=  V2S2×1/S1

                      ∴V1= 250×20÷50

                       ∴V1= 100ml

 

6 0
3 years ago
i wanna know why my mom seems to rather- dislike me?- i mean like is it horomonal issues or whatever?! ;_; im confus3d here. can
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Explanation:

wanna know why my mom seems to rather- dislike me?- i mean like is it horomonal issues or whatever?! ;_; im confus3d here. can this be counted for a science question?- im not sure. its 12:00AM rn and im actually confused as if this is science or just me wondering the m0st random thingalings. :'D

5 0
2 years ago
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