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1 year ago

Select the correct answer.

1 answer:

3 0

The type of crude oil that is considered to be the highest quality for gasoline is West Texas Intermediate (Option B).

Oil is a fossil fuel obtained from Earth's crust, which is fundamental nowadays to generate electricity.

West Texas Intermediate is a highly pure and high-type energy source of crude oil used in industry.

In conclusion, the type of crude oil that is considered to be the highest quality for gasoline is West Texas Intermediate.

Learn more about oil fuel here:

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In an experiment, zinc chlorate decomposed according to the following chemical equation.

mote1985 [20]

Answer : The correct expression is, (150 × 3 × 31.998) ÷ (232.29 × 1) grams

Explanation :

First we have to calculate the moles of $Zn(ClO_3)_2$

$\text{ Moles of }Zn(ClO_3)_2=\frac{\text{ Mass of }Zn(ClO_3)_2}{\text{ Molar mass of }Zn(ClO_3)_2}=\frac{150g}{232.29g/mole}=\frac{150}{232.29}mole$

Now we have to calculate the moles of $O_2$

The balanced chemical reaction is,

$Zn(ClO_3)_2\rightarrow ZnCl_2+3O_2$

From the balanced chemical reaction we conclude that,

As, 1 mole of $Zn(ClO_3)_2$ react to give 3 mole of $O_2$

So, $\frac{150}{232.29}$ moles of $Zn(ClO_3)_2$ react to give $\frac{150}{232.29}\times \frac{3}{1}$ moles of $O_2$

Now we have to calculate the mass of $O_2$

$\text{ Mass of }O_2=\text{ Moles of }O_2\times \text{ Molar mass of }O_2$

$\text{ Mass of }O_2=(\frac{150}{232.29}\times \frac{3}{1})mole\times (31.998g/mole)=\frac{150\times 3\times 31.998}{232.29\times 1}g$

Therefore, the correct expression for the mass of oxygen gas formed is, (150 × 3 × 31.998) ÷ (232.29 × 1) grams

6 0

3 years ago

Read 2 more answers

Whenever anything moves, it has _____ energy. <br><br> chemical <br> heat <br> mechanical

BaLLatris [955]

Mechanical, because the other two make no sense and mechanical energy is the combination of kinetic and potential energy, or moving and still respectively.

5 0

3 years ago

What is instantaneous acceleration?A. how fast a speed is changing at a specific instant B. how fast a velocity is changing at a

joja [24]

If i had to answer i would choose a hope this helps

8 0

3 years ago

What type of chemical reaction is given by the following balanced equation:<br> Al₂O3 → AL+ O₂

rjkz [21]

Answer:

Decomposition

Explanation:

3 0

3 years ago

Help me with please !!!

egoroff_w [7]

I would think the last one about the ozone layer

6 0

3 years ago