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3 years ago

The chemical equation shown here is an example of what type of reaction? 2hclo4 (aq) + mg(oh)2 (s), ↔ mg(clo4)2 (aq) + 2h2o (aq)

1 answer:

3 0

We are given the balanced equation:2hclo4 (aq) + mg(oh)2 (s) ↔ mg(clo4)2 (aq) + 2h2o (aq)
First upon seeing the whole equation, I can say that the reaction is a reversible reaction as indicated by the symbol ↔

Second, this reaction is a neutralization reaction, we can see that an acid and a base is reacted to form a salt and water.

You might be interested in

What amount of acid is esterified if a mixture consist initially of 1.0mole of ethanoic acid,1.0mole of ethanol and 1.0mole of w

ale4655 [162]

Answer:

0.54 mole

Explanation:

CH3COOH CH3CH2OH CH3COOCH2CH3 H2O

Initial concentration 1.0 mole 1.0 mole 0 mole 1.0mol

Change - x - x + x + x

Equilibrium (1.0 - x) (1.0 - x) x (1.0 + x)

K = [CH3COOCH2CH3]*[H2O]/[CH3COOH]*[CH3CH2OH]

x*(1.0+x)/(1.0-x)(1.0-x) = 4.0

x+x²=4*(1-x)²

x+x² = 4(1² - 2x + x²)

x + x² = 4 - 8x + 4x²

4 - 8x + 4x²- x² - x= 0

3x² - 9x + 4 = 0

x=2.5 , x=0.54

2.5 mole of acid cannot be esterified, because there is only 1.0 mole of acid,

so answer is 0.54 mole.

3 0

4 years ago

Calcium carbonate forms limestone, one of the most common rocks on Earth. It also forms stalactites, stalagmites, and many other

max2010maxim [7]

Answer: $CaCO_3(s)\rightarrow CaO(s)+CO_2(g)$ , 0.533 L

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

$CaCO_3(s)\rightarrow CaO(s)+CO_2(g)$

According to avogadro's law, 1 mole of every substance occupies 22.4 L of volume at STP.

Number of moles = $\frac{\text {given mass}}{\text {Molar mass}}$

moles of calcium carbonate = $\frac{2.38g}{100g/mol}=0.0238mol$

As 1 mole of calcium carbonate produces = 22.4 L of carbon dioxide at STP

Thus 0.0238 moles of calcium carbonate produces = $\frac{22.4 L}{1}\times 0.0238=0.533L$ of carbon dioxide at STP

3 0

3 years ago

1.What percent of light passes through the sample if its absorbance A=2?

Dennis_Churaev [7]

1. The formula for absorbance is given as:

A = log (Io / I)

where A is absorbance, Io is initial intensity, and I is final light intensity

log (Io / I) = A

log (Io / I) = 2

Io / I = 100

Taking the reverse which is I / Io:

I / Io = 1 / 100

I / Io = 0.01

Therefore this means that only 0.01 fraction of light or 1% passes through the sample.

2. What is meant by transmittance values is actually the value of I / Io. So calculating for A:

at 10% transmittance = 0.10

A = log (Io / I)

A = log (1 / 0.10)

A = 1

at 90% transmittance = 0.90

A = log (Io / I)

A = log (1 / 0.90)

A = 0.046

So the absorbance should be from 0.046 to 1

3. at 10% transmittance = 0.10

A = log (Io / I)

A = log (1 / 0.10)

3 0

3 years ago

What's the structure of Cl2O? Is it polar or non-polar?

lisabon 2012 [21]

Answer: C) Bent or angular, polar
Explanation:
The central atom oxygen has two lone pairs and two bond pairs in . The number of electron pairs are 4, that means the hybridization will be and the electronic geometry of the molecule will be tetrahedral. But as there are two lone pair of atoms around the central oxygen atom, repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent shape.
The compound is polar as the net dipole moment of oxygen - fluoride bonds do not cancel each other out.

3 0

3 years ago

Which of the following has the most thermal energy?

wariber [46]

Answer:

Hi, There!

Thanks for choosing Brainly!

<h2>Question</h2>

Which of the following has the most thermal energy?

<h2>Answer</h2>

The entire atmosphere of the earth

Explanation:

<h2>Below is some More Information</h2>

Thermal energy is produced by the movement of molecules in an object.

Boiling water on a stove is an example of thermal energy

I hope I was Able to help you Understand!

Good Luck on your assignment!

5 0

3 years ago