What are the options? Grammar-wise, a colon is usually used to introduce a list in a sentence.
Answer:
the water is frozen solid as the temperature drops each winter and the ice melts when the temperature increases again
Explanation:
What is a pond in the summer is a skating rink in the winter. Water exists in three different states: as a solid, liquid or gas. When Brandon comes to the park in summer and then in winter, he sees the same water in a liquid and solid state respectively.
Answer:
7.2 moles
Explanation:
Given the equation:
C2H6 + O2 → CO2 + H2O
First step is to balance the equation:
For complete combustion of ethane :
2C2H6 + 7O2 → 4CO2 + 6H2O
From the equation above, Mole ratio of ethane to CO2 ;
2C2H6 : 4CO2
2 : 4, reducing to lowest term; 1 : 2
Thus ;
1 mole C2H6 - - - - > 2 moles CO2
Therefore when ;
3.6 moles C2H6 - - - - > x moles CO2
x - - - - > (2 × 3.6) moles
x - - - > 7.2 moles
Therefore,
3.6 moles C2H6 = 7.2 moles CO2
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Answer:
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