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Vitek1552 [10]
3 years ago
5

Both a globe and a flat world map can module features of the earth. Give an example of when you would use each of these modules.

Chemistry
1 answer:
luda_lava [24]3 years ago
3 0
Distance between two cities
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Can someone please help me answer this
andreyandreev [35.5K]

Answer:

yiur mom

Explanation:

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4 0
2 years ago
What mass of carbon dioxide is formed when 1.75 mol of ethane burns completely in oxygen?
dybincka [34]

Answer:

There is a mass of 154 Grams of Carbon Dioxide.

Explanation:

One mole is equal to 6.02 × 10^23 particles.

This means we have 1.05 X 10^24 total particles of Ethane.

Each ethane particle contains 2 carbon atoms.

If every particle of ethane is burned, we will end up with 2.10 x 10^24 molecules of Carbon Dioxide (Particles of Methane x 2, since each Methane particle contains 2 carbon atoms)

Carbon Dioxide has a molar mass of 44.01 g/mol

So if we take our amount of Carbon Dioxide molecules and divide it by 1 mole, ((2.10 x 10^24)/(6.02 x 10^23) = 3.49) we find that we have 3.49 moles of Carbon Dioxide.

Now all we need to do is multiply our moles of carbon dioxide(3.49) by it's molar mass(44.01) while accounting for significant digits.

What you should end up with is 154 Grams of Carbon Dioxide.

Hope this helps (And more importantly I hope I didn't make any errors in my math lol)

As a side note this is all assuming that this takes place at STP conditions.

3 0
3 years ago
450 nanometers to meters
lys-0071 [83]

Answer: 4.5 x 10e-7

Explanation: 450 x 1e+9 = correct answer

Multiply amount of nanometers by 1e+9 to get the approximate result in meters.

4 0
3 years ago
Which type of reaction is occurring during a fireworks show? How do you know?
Natasha2012 [34]

Answer:

It is an exothermic reaction. Heat must be added to light the fuses of the fireworks

Explanation:

I learned this in high school chemistry.

8 0
2 years ago
HELPPPP PLEASEE!!!!!!!
OlgaM077 [116]

I think the answer is yes

3 0
2 years ago
Read 2 more answers
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