Defns Classif. of Matter

PeriodicTable

Properties Potpourri

100 100 100 100 100

200 200 200 200 200

300 300 300 300 300

400 400 400 400 400

500 500 500 500 500

Final

Final Jeopardy

Define: Molecule

Give an example.

Answer

Answer to Final Jeopardy

• Two or more elements held together by covalent bonds that have the identity and properties of a particular substance.

• Examples: CH4 H20 F2

100 Definitions

The smallest unit of matter is a(n)

Answer

Definitions 100 Answer

An Atom

200 Definitions

The chemistry of carbon compounds

Answer

Definitions 200 Answer

• Organic Chemistry

300 Definitions

A.Research simply to gain knowledge

B. Research performed to solve a particular problem

Answer

Definitions 300 Answer

A. Basic ResearchB. Applied Research

400 Definitions

Define matter.

Of the following, which are matter?Earth Sunlight Water Air

Answer

Definitions 400 Answer

• Matter is anything that has mass and takes up space.

• Water, air and earth are matter.

• Sunlight is energy.

500 Definitions

Are changes of state physical or chemical changes?

Name 4 of the following state changes:solid liquid solid gasgas liquid liquid solidliquid gas Answer

Definitions 500 Answer

State or phase changes are physical changes

solid liquid = melting

solid gas = subliming

gas liquid = condensing

liquid solid = freezingliquid gas = boiling, evaporating

100 Classification of Matter

Give 1 example each of solutions in which the solvent is in the solid,

liquid and gas phases.

Answer

Classification of Matter 100 Answer

Solid solution = brass, bronze, pewter, or any alloy

Liquid solution = ethanol in gasoline or sugar dissolved in water

Gaseous solution = air

200 Classification of Matter

List the three main types of mixtures in order of increasing particle size.

Answer

Classification of Matter 200 Answer

• Solution – smallest particles – they are individual ions, atoms or molecules

• Colloid – intermediate size particles

• Suspension – largest size particles – too heavy to stay mixed without stirring or shaking

300 Classification of MatterExplain the difference between elements

and compounds.Classify each of the following as an

element or compound:

CH4 N2 S8 NH4Cl KI Mo

Answer

Classification of Matter 300 Answer

Elements are composed of only one type of atom.

Compounds are composed of two or more different elements.

CH4 NH4Cl and KI are compounds

Mo, S8 and Fe are elements

400 Classification of MatterClassify each of the following as a homogeneous

mixture, colloid, suspension, element or compoundAnswer

1. Sprite or Sierra Mist soda2. Gel toothpaste3. Carbon dioxide gas4. Latex paint (must be stirred before using)

Classification of Matter 400 Answer

1. Sprite or Sierra Mist soda = solution

2. Gel toothpaste = colloid

3. Carbon dioxide gas = compound

4. Latex paint (must be stirred before using)

= suspension

500 Classification of Matter

You are shown a bottle containing a liquid. Describe what you could do to determine whether it is a homogeneous mixture, a heterogeneous mixture or a pure substance. (Your answer must differentiate between all 3 possibilities)

Answer

Classification of Matter 500 Answer

• Shine a light through it – if it is scatters light, is cloudy, it is a heterogeneous mixture.

• If it is clear, heat a sample to boiling. If, when the liquid boils away, there is a solid left behind, it was a solution.

• If there is nothing left after boiling at a constant temperature, it was a pure substance.

100 Periodic Table

Give the symbols of 3 metalloid elements.

Answer

Periodic Table 100 Answer

B, Si, Ge, As, Sb, Te, Po

200 Periodic Table

Explain why Ne, He, Xe, Ar, Kr are in the same column.

What is the name of this group of elements?

Answer

Periodic Table 200 Answer

• They all have the similar property of non-reactivity.

• They all have full valence shells.

• The group is called “Noble Gases”

300 Periodic Table

Name the element that is left of the staircase (not touching the staircase) but is not considered to be a metal.

Answer

Periodic Table 300 Answer

Hydrogen

400 Periodic Table• Name a metalloid in Period 2.• Name a solid nonmetal.• Name a metal from Group 14.• Name a liquid element from the

fluorine family. • Name a transition metal heavier

than gold• Name a halogen with more protons

than tin (Sn) Answer

Periodic Table 400 Answer• a metalloid in Period 2 = Boron

• a solid nonmetal = C,P,S,I,Se

• a metal from Group 14= Sn, Pb

• a liquid element from the fluorine family = Bromine

• transition metal heavier than gold = Hg

• halogen w/ more protons than Sn = I

500 Periodic Table

• Name the two element rows at the bottom of the periodic table.

• Give two reasons why these two rows are located at the bottom of the table rather than within it.

Answer

Periodic Table 500 Answer• Lanthanide series (lanthanoids)• Actinide series (actinoids)• They are apart from the table because the

elements in the rows have similar properties to each other but different valence structures and properties from the other table groups. Their removal also makes the table a more manageable size.

100 PropertiesClassify each of the following as a

chemical or physical change:• Grinding peppercorns• Frying an egg• Baking a cake• Making lemonade• Mixing red and blue paint to make

purpleAnswer

Properties 100 Answer

• Grinding peppercorns = physical

• Frying an egg = chemical

• Baking a cake = chemical

• Making lemonade = physical

• Red+Blue paint to Purple = phys

200 PropertiesA pure substance has the following

properties:

• density of 13.5 g/cm3

• good conductor of electricity

• liquid at room temperature

• has a silvery luster

• is composed of only one type of atom

Identify this substance. Answer

Properties 200 Answer

Hgthe properties indicate it is a

liquid metal element

300 Properties

Isopropanol (Rubbing Alcohol)Give the following properties for this

substance:• Intensive, qualitative• Extensive, quantitative• Chemical

Answer

Properties 300 Answer

• Intensive, qualitative = astringent odor, clear, colorless, liquid at room temperature

• Extensive, quantitative = 500 mL

• Chemical = flammable, kills germs

400 Properties

Explain the useful property shared by metalloids.

What are the applications for these elements? (in what devices are they used?)

Answer

Properties 400 Answer

• Metalloids are useful as semi-conductors – materials which have increasing conductivity with increasing temperature

• Semi-conductors are used in computers, cell phones, iPods, etc. -- anything computerized

500 Properties

Other than good conductivity of heat and electricity, name and define 4 properties that are unique to metals.

Answer

Properties 500 Answer

• Malleable – able to be pounded into thin sheets

• Ductile – able to be drawn into wire

• Luster – reflective, shiny

• Tensile strength – resist breaking when stretched

100 Potpourri

Name the four phases (states) of matter

Answer

Potpourri 100 Answer

• Solid

• Liquid

• Gas

• Plasma

200 Potpourri

Describe the plasma phase of matter.

In what common item(s) can plasma matter be found?

Answer

Potpourri 200 Answer

• Plasma is a high temperature state of matter in which gaseous atoms have lost electrons

• Plasma is the material in fluorescent light bulbs.

300 Potpourri

Write the word or chemical equation for the combustion of a hydrocarbon fuel.

Answer

Potpourri 300 Answer

Word equation:Fuel + Oxygen Carbon dioxide + Water vapor

Chemical equation:

Hydrocarbon fuel + O2 CO2 (g)+ H2O(g)

400 Potpourri

In the following chemical equation, draw a box around the reactant(s). Draw an oval around the product(s)

Ag + 2HNO3 AgNO3 + NO2 + H2O

Potpourri 500 Answer

• Color change (new color)

• Production of a gas (bubbling)

• Formation of a precipitate – an insoluble solid – indicated by cloudiness in a liquid

• Evolution of heat and/or light (flame or light produced)

500 Potpourri

Describe the 4 signs indicating a chemical change has occurred and the observations associated with each. Define all scientific terms.

Answer