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almond37 [142]
2 years ago
10

Which of the following BEST explains why fossil fuel supplies are limited?'

Chemistry
1 answer:
kupik [55]2 years ago
8 0
I believe it is A) fossil fuels are formed over millions of years and they are being used more quickly than they can be replaced
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The acceleration due to gravity on Earth is 9.80 m/s 2 . If the mass of a honeybee is 0.000100 kilograms, what is the weight of
sweet [91]
Okay so i think the answer to this is.

weight=mg

m=0.000100 g=9.80

so weight= 0.00980 kgm/s2
Hopefully thats correct (i am horrible at math) 
5 0
3 years ago
How does bohr's model differ from rutherford's model??
almond37 [142]
Bohr suggested, that there are definitive shells of particular energy and angular momentum in which an electron can revolve. It was not in Rutherford's model
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3 years ago
(1.8 x 10-2) ÷ (9 x 102) =
8_murik_8 [283]
0.01742919 is the answer because i worked it out
3 0
3 years ago
Read 2 more answers
Use molecular structure and intermolecular bonding to describe why bromine has a lower boiling point than water
kotegsom [21]

Answer:

Bromine mollecules are held together by van der waals forces while a water molecule constitutes both van der waals forces and hydrogen bomnding

Explanation:

This makes the water molecule recquire more heat energy to break the bond thus a higher boiling point while bromine structure requires just litttle heat energy  

3 0
3 years ago
What volume of carbon dioxide (CO2) will be produced if 2.90 moles of it on (Fe) is produced?
dolphi86 [110]

Answer:

= 97.44 Liters at S.T.P

Explanation:

The reaction between Iron (iii) oxide and Carbon monoxide is given by the equation;

Fe2O3(s)+ 3CO(g) → 3CO2(g) + 2Fe(s)

From the reaction when the reactants react, 2 moles of Fe and 3 moles of CO2 are produced.

Therefore; Mole ratio of Iron : Carbon dioxide is 2:3

Thus; Moles of Carbon dioxide = (2.9/2)×3

                                                   = 4.35 moles

But; 1 mole of CO2 at s.t.p occupies 22.4 liters

Therefore;

Mass of CO2 = 22.4 × 4.35 Moles

                     = 97.44 L

6 0
3 years ago
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