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Natasha2012 [34]
3 years ago
5

A piece of silver wire has a mass of 53.91 grams. How many moles of silver are in the wire?

Chemistry
1 answer:
densk [106]3 years ago
6 0

89 year old toys girl who have some starter pets plez im new

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A bicycle tire is filled with air to a pressure of 100. psi at a temperature of 19C. Riding the bike on asphalt on a hot day inc
Zigmanuir [339]

Considering the direct relationship between pressure and temperature, the new pressure in the bicycle tire would be 63.01 psi

<h3>Gas law</h3>

The general gas laws is given by:

  P1V1/T1 = P2V2/T2

Where P1 = initial pressure V1 = initial volume T1 = initial temperature, P2 = final pressure, V2 = final volume, and T2 = final temperature.

In this case, P1 = 100 psi, V1 = 1, T1 = 19+273 = 292, P2 = ?, V2 = 1.4, T2 = 58+273 = 331

P2 = P1V1T2/T1V2

        = 100x1x292/331x1.4

                   = 63.01 psi

More on gas laws can be found here: brainly.com/question/1190311

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2 years ago
Evaluate each scenario described to determine the direction of heat flow.
lana66690 [7]

Answer:Tap water to ice cube

Explanation:

6 0
3 years ago
How can you get pure water from impure water ? Explain with Experiment ​
crimeas [40]

Answer:

Boil it.

Explanation:

If you mean how to clean water to sanitize it you have to boil it.

3 0
3 years ago
Catalysts increase reaction rates by lowering the activation energy of a reaction.
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The answer is true, catalysts increase rates by lowering the activation energy of a reaction. Catalysts lower the reaction energy and so the reaction occurs faster. Enzymes perform the role of biological catalysts. Most metabolic pathways of the body are controlled by enzymes. Enzymes by classification are proteins. <span />
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3 years ago
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Wolff-kishner reduction (hydrazine, koh, ethylene glycol, 130°c) of the compound shown gave compound
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The scheme is shown below, the steps involved are as follow,

Step one: Reduction:
               The carbonyl group of given compound on reduction using Wolf Kishner reagent converts the carbonyl group into -CH₂- group.

Step two: Epoxidation:
              The double bond present in starting compound when treated with m-CPBA (<span>meta-Chloroperoxybenzoic acid) gives corrsponding epoxide.

Step three: Reduction:
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Step four: Oxidation:
               The hydroxyl group (alcohol) is oxidized to carbonyl (ketonic group) using oxidizing agent Chromic acid (H</span>₂CrO₄).

8 0
4 years ago
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