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larisa [96]
2 years ago
7

Pls help ill mark as brainliest

Chemistry
1 answer:
asambeis [7]2 years ago
3 0

Answer:

Decomposition

Explanation:

First, you have one compound, then they break up, or decompose, into two compounds.

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Muriatic acid, HCl, is often used to remove rust. A solution of muriatic acid, HCl, reacts with Fe2O3 deposits on industrial equ
Alina [70]

Answer:

3L

Explanation:

Step 1:

The balanced equation for the reaction.

Fe2O3(s) + 6HCl(aq) → 2FeCl3(aq) + 3H2O

Step 2 :

Determination of the masses of HCl and Fe2O3 that reacted from the balanced equation. This is illustrated below:

Molar mass of Fe2O3 = 159.70g/mol

Molar mass of HCl = 36.46 g/mol

Mass of HCl from the balanced equation = 6 x 36.46 = 218.76g

From the balanced equation above,

159.70g of Fe2O3 reacted with 218.76g of HCl

Step 3:

Determination of the mass of HCl needed to react with 439g of Fe2O3. This is illustrated below:

From the balanced equation above,

159.70g of Fe2O3 reacted with 218.76g of HCl.

Therefore, 439g of Fe2O3 will react with = (439 x 218.76) /159.70 = 601.35g of HCl.

Step 4:

Conversion of 601.35g of HCl to mole. This is illustrated below:

Molar mass of HCl = 36.46 g/mol

Mass of HCl = 601.35g

Number of mole = Mass/Molar Mass

Number of mole of HCl = 601.35/36.46

Number of mole of HCl = 16.49 moles

Step 5:

Determination of the volume of the HCl that reacted.

This is illustrated below:

Mole of HCl = 16.49 moles

Molarity of HCl = 5.50 M

Volume =?

Molarity = mole /Volume

Volume = mole /Molarity

Volume = 16.49/5.5

Volume of HCl = 3L

Therefore the volume of HCl needed for the reaction is 3L

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2 years ago
How many protons, neutrons, and electrons are in the isotope 32S2-
Snezhnost [94]

Answer:

There are 16 protons, 18 electrons and 16 neutrons. I hope this helped:)

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What would be a result of an increase in the population of grasshoppers
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Simora [160]

Answer:

I'm doing fine

Explanation:

4 0
3 years ago
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Use the following picture to answer questions #6 and 7. Consider that after the snowboarder starts down from the hill from point
STALIN [3.7K]
Remeber:

Kinectic energy = [1/2]mv^2
Potential energy = m.g[h - h0]

6. When the snowboarder is still at the top, she does not have kinetic energy, given that the speed is zero.

There, at the top, the potential energy is maximum, given that the height, h - h0, is the highest.

So, ar the topo she only has potential energy.

7. From that point, the snowboarder, starts to gain velocity; is has started a process of conversion of potential energy to kinetic energy. More velocity, less height, more kinetic ener energy and less ptential energy.

At the very bottom, when she has reached the heigth of reference, h0, the term [h - h0] becomes zero, then the potential energy has dissapeared and all the energy has been transformed into kinetic energy; the speed and the kinetic energy are maximum.
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3 years ago
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