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3 years ago

The image shows an example of a sedimentary rock.

Chemistry

2 answers:

Pani-rosa [81]3 years ago

5 0

Can I see the image?

sdas [7]3 years ago

3 0

Answer:

the ocean animals deposited in it's layers

Explanation:

Hope this helps!

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Burning wood represents a chemical change.<br> True or False?

Strike441 [17]

True
is the answer lol

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3 years ago

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Look at the following reaction. How could you increase the production of 2NH3(g)? N2(g) + 3H2(g) 2NH3(g) Increase the volume of

Zolol [24]

The correct option is B. To increase the production of ammonia, you have to increase the pressure of the system. Increase in pressure will result in increased production of ammonia because this will drive the chemical reaction forward.

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3 years ago

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Can anyone please help me

mixas84 [53]

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4 years ago

If you have 250 mL of 0.75 M LINO2.<br> How many grams of this substance<br> would you have?

Vesna [10]

Mass of this substance = 9.928 g

<h3>Further explanation</h3>

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

$\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}$

Where

M = Molarity

n = Number of moles of solute

V = Volume of solution

So to find the number of moles can be expressed as

$\boxed{\bold{n=V\times M}}$

mol of substance -Lithium nitrite - LiNO₂ :

V = 250 ml = 0.25 L

M = 0.75 M

$\tt n=0.25\times 0.75=0.1875$

So mass of this substance - LiNO₂ (MW=52,947 g/mol) :

$\tt mass=mol\times MW\\\\mass=0.1875\times 52,947 g/mol\\\\mass=9.928~g$

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3 years ago

What is the volume of a rock that has a mass of 50 grams and a density of<br> 5 g/ml?

Brut [27]

Explanation:

density = mass/ volume

so,

volume = mass/ density

volume = 50 g/ 5 g/ml³

volume = 10 ml³

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3 years ago