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3241004551 [841]
3 years ago
6

How to identify sodium hydroxide,hydrochloric acid,ans=d sugar solution when we only have blue litmus paper

Chemistry
1 answer:
elena55 [62]3 years ago
4 0
Turmeric solution turns red in contact with bases and is not affected by acids and neutral substances. Put one drop of each liquid as the turmeric paper. The liquid whose drop turns the paper red is solution hydroxide (base).
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How many moles of Co2 are produced when 0.2 moles of sodium carbonate reacts with excess HCl
Pie
To determine the number of moles of carbon dioxide that is produced, we need to know the reaction of the process. For the reaction of HCl and sodium carbonate, the balanced chemical equation would be expressed as:

2HCl + Na2CO3 = 2NaCl + H2O + CO2

From the initial amount given of sodium carbonate and the relation of the substances from the balanced reaction, we calculate the moles of carbon dioxide as follows:

0.2 moles Na2Co3 ( 1 mol CO2 / 1 mol Na2Co3 ) = 0.2 moles CO2

Therefore, the amount in moles of carbon dioxide that is produced from 0.2 moles sodium carbonate would be 0.2 moles as well.
5 0
2 years ago
Please help!! <br><br> Is this an:<br><br> Acid<br><br> Base <br><br> Neither
Liono4ka [1.6K]

Answer:

it is a weak acid

acid

Explanation:

formaldehyde is a weak acid (pK greater than 13),

3 0
1 year ago
Write a paragraph to explain the answer to the following prompt:
Anton [14]

Answer:

hinndndnnddnndndndnd do djfj

Explanation:

hdhdjdbdndndndjjddjdndjdjdndnndndndnd be rnnrbr

7 0
3 years ago
How many moles there is in 6.02x10^23 molecules of hydrogen chloride ​
Masteriza [31]
I mole is the answer I believe
3 0
2 years ago
Liquidtight flexible nonmetallic conduit marked as ____ has a smooth seamless inner core and cover bonded together and one or mo
DanielleElmas [232]

Answer:

LFNC-A

Explanation:

Liquidtight Flexible Non-Metallic Conduit Type LFNC-A is a layered raceway of circular cross section with a smooth flexibly polyvinyl chloride (PVC) inner layer with a reinforcing layer covered with a flexible polyvinyl chloride (PVC) jacket.

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3 years ago
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