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emmasim [6.3K]
3 years ago
9

Which atoms in the cfc molecule can destroy thousands of ozone molecules in the upper atmosphere?

Chemistry
2 answers:
viktelen [127]3 years ago
8 0
Flourine and chlorine 
zalisa [80]3 years ago
6 0
Fluorine and chlorine 
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Karolina [17]
Can you reword it im confused
6 0
3 years ago
How are cholesterol and bile related? Thank you!
Alchen [17]
One of the major functions of cholesterol is in making bile acid these are synthesized in the liver from cholesterol and secreted in bile. It is used in the absorption of fat. Cholesterol is then reabsorbed in the lower intestine and recycled.
8 0
3 years ago
A football field is about 100 m long. If it takes a person 20 seconds to run its length, how fast were they running ?
madam [21]
Hi Alex, thanks for asking a question here on Brainly!

We can figure how the fast the person is running by dividing the minutes by the seconds. 

\frac{5m}{sec}
= \frac{300m}{min}
= \frac{18km}{hr}

The person was running 18 km/hr. ✅ 

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or post another question and send the link to me. -UnicornFudge aka Nadia.
3 0
4 years ago
Why does heating increase the speed at which a solute dissolves in water?
saw5 [17]

Answer: C

Explanation:

It gives kinetic energy to the molecules and it breaks the bonds faster because they jiggle more

8 0
3 years ago
In ironmaking, iron metal can be separated from iron ore (Fe2O3) by heating the ore in a blast furnace in the presence of coke,
mel-nik [20]

The limiting reactant is iron ore, the theoretical yield of iron metal is 701.344 kg, and the theoretical yield of carbon dioxide is 413.292 kg.

<h3>Stoichiometric problem</h3>

From the equation of the reaction:

2 Fe_2O_3(s) + 3 C(s) --- > 4 Fe(s) + 3 CO_2(g)

The mole ratio of iron ore to carbon is 2:3.

Mole of 1000 kg of iron ore = 1000000/159.69

                                          = 6,262 moles

Mole of 120 kg carbon = 120000/12

                                 = 10,000 moles

Thus, it appears that the carbon is in excess while the iron ore is limited in availability.

The mole ratio of the iron ore and the iron produced is 1:2. Thus, the equivalent number of moles of iron produced will be:

              6,262 x 2 = 12,524 moles

Mass of 12,524 moles of iron = 12,524 x 56

                                                = 701,344 g or 701.344 kg

Thus, the theoretical yield of iron is 701.344 kg.

The mole ratio of the iron ore and the carbon dioxide produced is 2:3. The equivalent mole of carbon dioxide produced will be:

         6,262 x 3/2 = 9,393 moles

Mass of 9,393 moles carbon dioxide = 9,393 x 44

                                                         = 413,292 or 413.292 kg

The theoretical yield of carbon dioxide is, therefore, 413.292 kg.

More on stoichiometric problems can be found here: brainly.com/question/14465605

#SPJ1

       

3 0
2 years ago
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