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PilotLPTM [1.2K]
3 years ago
14

What happens when a book falls of a desk?

Chemistry
2 answers:
SVEN [57.7K]3 years ago
7 0

Answer:

is there a question to this to at you need help with?

MatroZZZ [7]3 years ago
5 0

Answer:

Happy Face excellent song

Explanation:

and gravity takes the book and pulls it to the ground

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Where do properties of matter come from?
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Answer:

Extensive or inextinsive and either physical or chemical

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2 years ago
1. How much NaCl would you need to weigh out to prepare 100 mL of a 2.5% NaCl<br> solution?
Ira Lisetskai [31]
<h3><u>Answer</u> - 5.85g</h3>

<h3><u>Solution</u> - </h3>

Using the concentration equation, m = CVMo where m is the mass of solute, C is the concentration (M), V is the volume of solution (L) and Mo is molar mass of the solute (g):

Given,

Molar mass of NaCl, M = 58.5g/mol

Volume of the solution, V= 100ml = 0.1L

Molarity, S= 1M

Mass of the solute,W=?

W=SMV

= 1×58.5×0.1

= 5.85g

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2 years ago
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yes

Explanation:

3 0
2 years ago
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A hydrogen atom is removed from the first carbon atom of a butane molecule and is replaced by a hydroxyl group.
viktelen [127]

Answer:

See answer below

Explanation:

In this case, let's draw the butane molecule:

CH₃ - CH₂ - CH₂ - CH₃

According to what the exercise states, we removed an atom of hydrogen from the frist carbon. This could be any of the terminals. I'll grab the first from left to right.

CH₂⁺ - CH₂ - CH₂ - CH₃

When this happens, the atom of carbon is lacking one space and it forms a carbocation.

Followed this step, an hydroxile group replace the atom of hydrogen. The hydroxile is the OH, and when we have an alkane with an OH group in the molecule, we are actually converting this molecule into an alcohol, therefore the molecule formed is:

<h2>OH - CH₂ - CH₂ - CH₂ - CH₃</h2><h2 />

Hope this helps

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3 years ago
Mr. Greenjeans wants to know which fertilizer helps grow the biggest pumpkins. He plants three pumpkin seeds of the same variety
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A)Mr.Greenjeans needs a control group for comparison.
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3 years ago
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