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masha68 [24]
3 years ago
15

Select the correct comparison of meteors and meteorites. Meteorites are meteors that have struck the earth’s surface. Meteors ar

e meteorites that have struck the earth’s surface. Meteorites are meteors that burn in space. Meteors are meteorites that burn in space.
Chemistry
2 answers:
den301095 [7]3 years ago
6 0
Meteors are meteorites a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light.
BabaBlast [244]3 years ago
5 0
Meteors are meteorites that burn in space.
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There are two common oxides of copper; one is 80% copper and the other is 89% copper by weight. Calculate the formula and name e
irakobra [83]

80% copper (Cu)

Cu: 80 :  63.546 = 1.259

O: 20 : 16 = 1.25

Cu:O = 1 : 1

the formula: CuO

89% copper (Cu)

Cu: 89 :  63.546 = 1.4

O: 11 : 16 = 0.6875

Cu:O = 2:1

the formula: Cu₂O

8 0
2 years ago
A sample of gas consists of 4.0 moles, and exists at stp. What is the volume of the gas?
faust18 [17]

Answer:

The volume of the gas is 89.60

Explanation:

When converting from moles to volume, you would multiply by 22.4 because 1 mole equals 22.4 liters at STP.

So...

4.0 moles * 22.4 liters =

89.60 liters

6 0
2 years ago
Read 2 more answers
Which may be true for a substance that absorbs energy?
irinina [24]
It has different moleculs sorry I am guessing
8 0
3 years ago
How many moles of carbon dioxide gas should be produced when 10.0 g of C2H6 are combusted at STP?
Finger [1]

Answer:

                    0.665 moles of CO₂

Explanation:

                     The balance chemical equation for the combustion of Ethane is as follow:

                            2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Step 1: <u>Calculate moles of C₂H₆ as;</u>

                              Moles  =  Mass  /  M.Mass

Putting values,

                              Moles  =  10.0 g / 30.07 g/mol

                              Moles  =  0.3325 moles

Step 2: <u>Calculate Moles of CO₂ as;</u>

According to balance chemical equation,

                    2 moles of C₂H₆ produced  =  4 moles of CO₂

So,

             0.3325 moles of C₂H₆ will produce  =  X moles of CO₂

Solving for X,

                      X  =  0.3325 mol × 4 mol ÷ 2 mol

                      X = 0.665 moles of CO₂

3 0
2 years ago
What would limit the population growth of rabbits in a forest<br> ecosystem?
mihalych1998 [28]
Other predators? or other factors that affect the food chain ie extinction of whatever source the rabbits feed off of
5 0
3 years ago
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