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max2010maxim [7]
3 years ago
14

Where is the sun shining most directly when we are having winter in the Northern Hemisphere?

Chemistry
1 answer:
Anni [7]3 years ago
5 0
In the summer, in the southern hemisphere. when it is summer is the northern, it is winter in the southern. all year along, the most sun hits the equator, but when it is winter in the northern hemisphere (thats when Alaska goes dark because of no sun) there is summer in the southern Hemusphere such as continents like south america, india, africa, and places like that :)
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A. 20 moles of NH3 are needed to produce how many moles of H2O?
tiny-mole [99]

a. 30 moles of H₂O

b. 2.33 moles of N₂

<h3>Further explanation</h3>

Given

a. 20 moles of NH₃

b. 3.5 moles of O₂

Required

a. moles of H₂O

b. moles of N₂

Solution

Reaction

4NH₃+3O₂⇒2N₂+6H₂O

a. From the equation, mol ratio NH₃ : H₂O = 4 : 6, so mol H₂O :

=6/4 x mol NH₃

= 6/4 x 20 moles

= 30 moles

b. From the equation, mol ratio N₂ : O₂ = 2 : 3, so mol N₂ :

=2/3 x mol O₂

= 2/3 x 3.5 moles

= 2.33 moles

7 0
3 years ago
16) How many grams are in 1.2 x 1024 molecules of CO?<br> a. 28<br> b. 6.02<br> c. 56<br> d. 1.2
EastWind [94]

Answer:

c. 56

Explanation:

Convert molecules --> moles --> grams

1.2 x 1024 molecules CO * 1 mol/6.022 x 1023 molecules * 28.01 g/1 mol = 55.8153438

Rounded is 56

Let me know if you need further explanation!!

3 0
3 years ago
Why teflon is not a mineral​
MAXImum [283]

Answer: The actual name Teflon® is a brand/trademark name of the DuPont Corporation used

Explanation:

5 0
3 years ago
jin has four colorful glass bottles on his windowsill. one is red, one is violet, one is green, and one is yellow. the light tha
Over [174]
The red bottle would have the lowest frequency because red light has the longest wavelengths. The light passing through the violet would have the highest frequency because its wavelengths are the shortest.
4 0
4 years ago
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LuckyWell [14K]

Explanation:

true true true true true true

6 0
3 years ago
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