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4 years ago

Which of the following describes an air mass with the symbol cT?

Chemistry

2 answers:

DochEvi [55]4 years ago

7 0

<h2><em><u>B IS THE APPROPRIATE ANSWER</u></em></h2>

Savatey [412]4 years ago

3 0

Answer:

B) Warm air mass over a continent

Explanation:

cT means Tropical c= continent

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What mass of aluminum is needed to produce 0.500 mole of aluminum chloride?

3241004551 [841]

Answer: " 13.5 g Al " ;

→ that is: "13.5 grams of aluminum."

Explanation:

<u>Note</u>: What is missing from the question is the "balanced chemical equation" for the "chemical reaction" that contains:

The reactants: "aluminum (Al) " ; and "chlorine (Cl) " ; and:

The product: "aluminum choloride (AlCl₃) " .

____________________________

The "balanced chemical equation" is:

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2 Al + 3 Cl₂ → 2 AlCl₃ ;

_____________________________

<u>Note</u>: The molecular weight of "aluminum (Al)" is: " 26.98 g /mol " .

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So: We call solve using a technique known as: "dimensional analysis" :

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0.500 mol AlCl₃ * $(\frac{2mol Al}{2mol AlCl_{3} }) * (\frac{26.98g Al}{1 mol Al}) = ?$

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<u>Note</u>: The units of "mol AlCl₃" cancel out to "1' ; and:

The units of "mol Al" cancel out to "1" ; and we are left with:

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" $\frac{(0.500 * 2 * 26.98)}{2}$ g Al ["grams of aluminum"] ;

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<u>Note</u>: We can "cancel out the "2's" ; since "2/2 = 1 " ; and we have:

→ (0.500 * 26.98) g Al ;

= 13.49 g Al ;

→ Round to 3 (Three) significant figures;

→ Since: "0.500" has 3 (Three) significant figures:

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= 13.5 g Al ; that is: "13.5 grams of aluminum."

____________________________

Hope this is helpful!

Best wishes to you in your academic pursuits—and within the "Brainly" community!

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3 0

3 years ago

How many moles are there in 3.612 x 1024 molecules of CaO?

melamori03 [73]

The number of moles in 3.612 x 10²⁴ molecules of CaO is 6 moles.

<h3>Number of moles in the molecules</h3>

The number of moles in 3.612 x 10²⁴ molecules of CaO is calculated as follows;

6.02 x 10²³ molecules = 1 mole

3.612 x 10²⁴ molecules = ?

= (3.612 x 10²⁴ ) / (6.02 x 10²³ )

= 6 moles

Thus, the number of moles in 3.612 x 10²⁴ molecules of CaO is 6 moles.

Learn more about number of moles here: brainly.com/question/15356425

3 0

2 years ago

During photosynthesis, ________.

ludmilkaskok [199]

Answer:

d. there is a net consumption of water and carbon dioxide

Explanation:

Photosynthesis, is the process whereby light energy is transform into chemical energy by

green plants and other photosynthesis capable organisms . In the process of photosynthesis, light energy is captured by green plants which it uses to convert carbon dioxide water, and minerals into energy-rich organic compounds and oxygen is evolved as a byproduct.

It is a chemical reaction taking place inside a plant, resulting in the production of food for the survival of the plant.

Photosynthesis takes place in the leaves of a plant in the presence of sunlight and.

5 0

3 years ago

1. Write the balanced equation for the breakdown of hydrogen peroxide. The equation has been written, you just have to balance.

o-na [289]

The balanced equation is attached in the image below. The coefficients are 2, 2, blank.

7 0

4 years ago

Read 2 more answers

Newton's third law states that for every action, there is an ______ and ____ reaction force and that forces come in ____

Lelechka [254]

Answer:

Newton's third law of motion states that every action, there is an equal and opposite reaction force and that forces come in pairs

3 0

3 years ago