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Studentka2010 [4]
2 years ago
7

Throwing a snowball during snowball fight is most like an example of

Chemistry
1 answer:
algol132 years ago
3 0
Ittttt’ssss erosion.
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Calcium oxide or quicklime (CaO) is used in steelmaking, cement manufacture, and pollution control. It is prepared by the therma
Elena-2011 [213]

Answer:

The yearly release of CO_2 into the atmosphere is 6.73\times 10^{10} kg.

Explanation:

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

Annual production of CaO = 8.6\times 10^{10} kg=8.6\times 10^{13} g

Moles of CaO :

\frac{8.6\times 10^{13} g}{56 g/mol}=1.53\times 10^{12} moles

According to reaction, 1 mole of CaO is produced along with 1 mole of carbon-dioxide.

Then along with  1.53\times 10^{12} moles of CaO moles of carbon-dioxide moles produced will be:

\frac{1}{1}\times 1.53\times 10^{12} moles=1.53\times 10^{12} moles of carbon-dioxide

Mass of 1.53\times 10^{12} moles of carbon-dioxide:

1.53\times 10^{12}mol\times 44 g/mol=6.73\times 10^{13} g =6.73\times 10^{10} kg

The yearly release of CO_2 into the atmosphere is 6.73\times 10^{10} kg.

6 0
3 years ago
Um exemplo de força elétrica.
evablogger [386]

Answer:

la carga en una bombilla

7 0
2 years ago
Read 2 more answers
How many major reservoirs does carbon move between?<br> A. 3<br> B. 4<br> C. 5<br> D. 2
Irina-Kira [14]
<span>Carbon can also bond with other four atoms because of its outer shell (valence shell) that has four electrons. This is the reason why organic molecules can be so large because of this bonding. Suppose you have a compound of CCl4. You know that chlorine can only share 1 electron because 7 of its electrons are filled. Also, in carbon, it can only share 4 electrons because 4 of it are already filled. That is why carbon needs four chlorine to form CCl4. The answer is letter <u>B.</u></span>
8 0
3 years ago
Jayden says that the dentist can shine a special light on his teeth that will make his teeth become whiter. Can light change Jay
arsen [322]

Answer:

No

Explanation:

This is because light cannot not whiten Jayden's teeth but light can change materials by hearing it up. There are some substances or tooth paste that can be use to whiten the teeth because of the content they are made off which whitens the teeth. Some of it include baking soda, hydrogen peroxide toothpaste, tumeric toothpaste, toothpaste that contain fluoride.

5 0
3 years ago
Which one of the following solutions has The (((lowest )))PH value?
marissa [1.9K]

Answer:

a

Explanation:

because I said so and I think it's right

3 0
3 years ago
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