BONUS QUESTION: Worth 2 pts, will be hand graded How many of each type of atom are there in the formula Sr3(PO4)2?

An American runner ran in 14.5oF weather, whereas a German ran in -8.63oC weather. Which runner ran in the colder temperature? Conversion: oF = 32o + oC      (32 is an exact number)

The lowest temperature recorded in a particular city during the past year was -17.55oC. The temperature on the kelvin scale is ____K. Conversion: oF = 32o + 95 oC    (32 is an exact number)   and   K = 273.15 + oC

If a 55 g water absorbs 996 J, its temperature will increase by  _______oC.  Specific heat of water is 4.18 .

BONUS QUESTION: Worth 2 pts, will be hand graded What is the energy of the green light emitted by a mercury lamp with a frequency of 5.49 × 1014 Hz?  [answer1] x 10[answer2] J. Enter answer in proper scientific notation to correct number of significant figures with no units. First blank is for the coefficient preceding power of 10. Second blank is for the power of 10. c=

BONUS QUESTION: Worth 2 pts, will be hand graded Which term matches the definition: unequal sharing of electrons within a bond?

BONUS QUESTION: Worth 2 pts, will be hand graded The boiling point of CH2F2  is ____ the boiling point of CH4.

Which state of matter can be crystalline?

Consider this combustion reaction: methane + oxygen  

How many kJ are in 450 kWh? Conversions: 1 cal = 4.184 J     1 kWh = 3.60 x 106 J