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horrorfan [7]
3 years ago
10

a reagent bottle (labelled) is filled with HCL solution and the other (labelled as b) is filled with water. both liquids in the

bottle are colourless. what method do you recommend to identify the acid and water?
Chemistry
1 answer:
romanna [79]3 years ago
6 0

Answer:

There are several methods - look at the explanation.

Explanation:

So first you can use cobal chloride paper which turns from blue to pink when water is present or you can use anhydrous copper sulfate which turns from white to blue and the blue substance would be called hydrated copper sulfate which is formed when water and anhydrous copper sulfate mix.

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Read the statement and determine if you agree or disagree. Use evidence to support your answer.
victus00 [196]
The sun doesn't heat the air much directly because the radiation is all visible light, which isn't easily absorbed by gases in the atmosphere. So I would disagree
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3 years ago
What part of the scientific method involves controlling variables while testing a hypothesis?
Angelina_Jolie [31]

Answer:

Conducting an experiment

Explanation:

This is because you must test your hypothesis by doing an experiment on the hypothesis

6 0
3 years ago
A 10.0g sample of H2O(l) at 23.0degrees C absorbs 209 joules of heat. What is the final temp of the H2O(l) sample? Explain.
IRISSAK [1]

Answer:

Final temperature = 28.0 degrees C.

Explanation:

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7 0
3 years ago
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4 0
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Aqueous lead (II) nitrate, Pb(NO3)2 undergoes a double displacement reaction with aqueous sodium chloride, NaCl, in which a prec
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Answer:

{ \sf{Pb(NO_{3})_{2(aq)}  + 2NaCl _{(aq)} → 2NaNO_{3(aq)}  + PbCl _{2(s)} }} \\

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