ICP-B

Unit Conversions

100

How many milliseconds are in 3 seconds?

3000

200

How many meters are in 27.5 km?

27500 m

300

How many nm are in  85 micrometers?

85000 nm

400

How many cL are in 730 mL?

73 cL

500

How many cg are in 2.45 kg?

345,000 cg

Temperature

100

Convert -50C to Kelvin

223K

200

Convert 45F to celsius.

7.22 C

300

It is very hot and humid today.  Its 38 degrees!!! What temeprature scale is being used and how to you know?

Celsius.  A very hot and humid day would be in the 90s in the F scale, and that number is too low to be used in the Kelvin (plus 273 to convert from C to K).

400

What is absolute zero? And what scale is it used in?

(Hont: What is happening to the molecules at absolute zero?)

Kelvin, and it is where temeprature is at its absolute lowest.  No particles can move at this temeprature and there is no kinetic energy at this temperature present in the molecules.

500

The temperature in Indianapolis is at a record low of 223.  What temeprature is being used and how do you know?

Kelvin is being used because 223K is a very low temperature.  In the US we will never reach 223F or 223C because we cannot live at that temperature.

Molar Mass

100

What is the molar mass of O₂?

16g/mol

200

What is the molar mass of NaBO₃?

81.8g/mol

300

What is the molar mass of NaHCO₃?

84g/mol

400

What is the molar mass of C₆H₁₂O₆?

180.16g/mol

500

Explain how you calculate the molar mass of a compound.

Take the molar mass (atomic number) of each individual element in the compound and add them together.

Balancing Equations

100

Balance the following equation:

H₂  +  O₂  >  H₂O

2H₂  +  O₂  >  2H₂O

200

Balance the following equation:

SnO₂ + H₂ → Sn + H₂O

SnO₂ + 2 H₂ → Sn + 2 H₂O

300

Balance the following equation:

CO₂ + H₂O >  C₆H₁₂O₆  + O₂

6CO₂ + 6H₂O >  C₆H₁₂O₆  + 6O₂

400

Balance the following equation:

As + NaOH >  Na₃AsO₃  +  H₂

2As + 6NaOH >  2Na₃AsO₃  +  3H₂

500

Balance the following equation:

Ba₃N₂ + H₂O  >  Ba(OH)₂  +  NH₃

Ba₃N₂ + 6H₂O  >  3Ba(OH)₂  +  2NH₃

Phase Changes

100

What is it called when a substance goes from a gas to a liquid?

Condensation

200

What is it called when a substance goes from a liquid to a gas?

Vaporization

300

What is it called when a substance goes from a solid to a gas?

Sublimation

400

What is it called when a substance goes from a gas to a solid?

Deposition

500

What is needed for a solid to be converted to a gas? (sublimation)

Heat/energy needs to be added.