Jeopardy

Bonding

100

What is a covalent bond?

A covalent bond is a bond where the two atoms involved share electrons in order to give them both a full octet

200

What happens during the formation of an ionic bond in lithium fluoride?

Lithium donates an electron to fluorine and forms and ionic bond.

300

Which of the following atoms will form a covalent bond? S and P, K and Cl, Mg and Cl, C and O

S and P, C and O

400

Which compound will be harder to separate into its individual elements? NaCl or CO2? Why?

NaCl, because ionic bonds are stronger than covalent bonds and NaCl is an ionic compound while CO2 is a covalent compound

500

Predict the chemical formulas for the following; (must have all correct to get points) Mg and I Be and S Na and O Al and Br

MgI2 BeS Na2O AlBr3

Matter Matters

100

List the 3 phases of matter and give one characteristic of each

Solids- definite shape and volume, high density, definite melting point Liquids- no definite shape, definite volume, high density, surface tension, capillary action gases- no definite shape or volume, low density, compressible

200

What is kinetic energy?

Kinetic energy is the energy that objects have when they are in motion.

300

Explain how thermal energy and kinetic energy are involved when a liquid is being heated to boiling

Thermal energy is transferred into the liquid which then increases the kinetic energy and temperature of the liquid until the liquid undergoes a phase change into the gas phase.

400

Is blood a mixture or a compound? Give two reasons and use complete sentences.

Mixture because blood has multiple components and can be separated into its parts by physical processes

500

How can you separate the components of a mixture? Make sure to use the terms “physical” or “chemical” process.

You can separate the components of a mixture using physical processes, you do not need to use chemical processes.

Balancing Act

100

Balance the equation: __Br2 + __NaI --> __NaBr + I2

1 Br2 + 2 NaI --> 2 NaBr + 1 I2

200

Balance the following: __ Al(OH)3 + __ H2CO3 --> __Al2(CO3)3 + __ H2O

What is 2 Al(OH)3 + 3 H2CO3 --> 1 Al2(CO3)3 + 6 H2O

300

Calculate the molecular mass of C8H10N4O2 (remember units)

194.1915 g/mol

400

Calculate the molecular weight for C8H9NO2 (remember units)

151.1633 g/mol

500

How many moles are in 1.80kg of C6H12O6?

100 moles

Let's Get Physical (Properties)

100

Which is not a physical property? Melting point boiling point smell it reacts with O2 color

it reacts with O2

200

Name three properties of an acid and 3 properties of a base

Acids- sour, corrosive, produce H+ when reacting with metal, turns blue litmus paper red, conducts electricity Base- bitter, slippery, produces OH- when reacting with metals, turns red litmus paper blue, conducts electricity

300

In which phase do molecules have the least kinetic energy? How do you know?

Solid phase because kinetic energy describes the energy of moving particles, however the particles in solids are not moving very much.

400

True/false- Kinetic energy and thermal energy are only important to consider in phase changes where kinetic energy increases

False

500

What happens to the volume of a substance as the mass increases?

As mass increases, volume increases.

How much?

100

Calculate the number of grams in 8.05 moles of H3PO4

788.8 g H3PO4

200

Calculate the number of moles in 489 g of LiCl

11.5 moles

300

a. How many moles of NaBr will be produced when 0.98 g of bromine reacts according to the equation: __Br2 + __NaI --> __NaBr + I2

0.012 mol NaBr

400

b. Phosphorous will react with bromine to produce phosphorous tribromide (PBr3). How many moles of PBr3 will be produced if 0.87 g of Br2 is reacted? __P4 + __Br2 → __PBr3

.0036 mol PBr3

500

c. How many moles of hydrogen will be produced if 6.44 g of CaH 2 reacts according to the equation: __CaH2 + __H2O --> __Ca(OH)2 + __H2?

.306 moles H2