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Chemistry 121 Chapter 2 Chemical Formulas
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Terms in this set (10)
What does 3CO2 mean?
Three Carbon dioxide molecules
How many chemical bonds are present in the structural formula for butane?
13
Which formula tells us the most about a molecule?
structural formula
The molecular formula for glucose is C6H12O6. What is the empirical formula?
CH2O
We can always determine the precise structural formula from the: a.)empirical formula b.)molecular formula c.)molecular mass d.)none of the above
d.)none of the above
Two molecules with the same structural formula must have:
the same type of atoms in precisely the same number
Fructose's molecular formula is C6H12O6. What is its empirical formula?
CH2O
Octane's molecular formula is C8H18. What is its empirical formula?
C4H9
Cyclobutane consists of 4 atoms of carbon and 8 atoms of hydrogen. What is cyclobutane's empirical formula?
CH2
If the empirical formula for a compound is C3H8, which of the following are possible molecular formulas?
C3H8 and C6H16
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Verified questions
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Compare the heat capacity of a 2-kg steel frying pan and a 2-g steel pin. If the heat capacities of these objects differ, explain why.
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Your inventor friend proposes a design for cookware that allows boiling to take place at a temperature of less than $100^{\circ} \mathrm{C}$ so that food can be cooked with the consumption of less energy. Comment on this idea.
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Water is useful for reducing friction between objects. However, you also learned that (due to friction) moving water causes rough rocks to become smooth. How can this be?
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