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3 years ago

Which facts did you include in your response? Check all that apply.

Chemistry

2 answers:

pashok25 [27]3 years ago

7 0

Answer:

All Are correct responses

klasskru [66]3 years ago

5 0

Answer:

All options apply

Explanation:

Take for example the following oxidation-reduction reaction:

2 H2 + O2 -> 2 H2O

Hydrogen is oxidized, then its oxidation number increased (from 0 to +1) and lost electrons.

On the other hand, oxygen is reduced, that is, its oxidation number decreased (from 0 to -2) and gain the electrons lost by hydrogen.

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AleksandrR [38]

Rutherford's model didn't not account for the properties of electrons. bohr placed electrons in layers of orbit so C

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3 years ago

Hey, if anyone is really good at Chemistry can you please let me know? I can give either my pa dlet or my email, thanks :)

Vesnalui [34]

Answer:

i'm pretty good at it

Explanation:

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2 years ago

Read 2 more answers

What is the mass spectrom

NARA [144]

Answer:

Here's your Answer

Explanation:

the mass spectrum is the graphical representation of the ion abundance versus the mass to charge of the ions separated in mass spectrometer

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3 years ago

How many molecules of excess reactant remain after the reaction is complete?

vazorg [7]

8

It’s 8 bc I said it was 8 ;)

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3 years ago

Assuming that an acetic acid solution is 12% by mass and that the density of the solution is 1.00 g/mL, what volume of 1 M NaOH

Doss [256]

Explanation:

Let us assume that total mass of the solution is 100 g. And, as it is given that acetic acid solution is 12% by mass which means that mass of acetic acid is 12 g and 88 g is the water.

Now, calculate the number of moles of acetic acid as its molar mass is 60 g/mol.

No. of moles = $\frac{mass}{\text{molar mass}}$

= $\frac{12 g}{60 g/mol}$

= 0.2 mol

Molarity of acetic acid is calculated as follows.

Density = $\frac{mass}{volume}$

1 g/ml = $\frac{100 g}{volume}$

volume = 100 ml

Hence, molarity = $\frac{\text{no. of moles}}{volume}$

= $\frac{0.2 mol}{0.1 L}$

= 2 mol/l

As reaction equation for the given reaction is as follows.

$NaOH + CH_{3}COOH \rightarrow CH_{3}COONa + H_{2}O$

So, moles of NaOH = moles of acetic acid

Let us suppose that moles of NaOH are "x".

$x \times 1 M = 10 mL \times 2 M$ (as 1 L = 1000 ml)

x = 20 L

Thus, we can conclude that volume of NaOH required is 20 ml.

6 0

3 years ago