Vocabulary Matters State of confusion Mixture Madness If you can’t stand the heat Experiment This!

The smallest unit of an element that keeps all of the properties of that element.

Atom

Matter that can be physically separated

Mixture

A substance that cannot be separated into simpler substances by chemical means.

Element

This property tells you how much energy a certain mass can absorb before changing temperature

Specific Heat

This has particles that are too small to settle out but are big enough to scatter light

Colloid

Going from solid liquid

Melting

Temperature in Celcius at which both ice and water are present

0 ˚C

Going directly from gas to solid

Deposition

Both of these will determine the state of matter a substance is in.

Temperature and Pressure

This describes the energy required to convert a solid at its freezing point to a liquid at its freezing point.

Enthalpy of Fusion

Saltwater

Homogeneous mixture

Aluminum

Element/pure substance

Blood

Heterogeneous Mixture

Fog

Colloid

Scattering of light due to large solution particles.

Tyndall Effect

Heat energy is measured in these units.

Joules/calories

This is the equation to calculate heat from temperature change.

q=mCΔT

This is the energy required to raise 5.0g of metal 10.0˚C that has a specific heat of J/g˚C

25 Joules

If starting at the same temperature and having the same mass, this one of the following will melt more ice: 1)Aluminum 2)Tin 3)Wood 4)Glass

Wood

A 6.75-g sample of gold (specific heat capacity = J/g °C) is heated using 50.6 J of energy. If the original temperature of the gold is 25.0°C, what is its final temperature?

82.7 g

This is the specific heat of water.

4.184 J/g˚C

This instrument helps prevent loss of heat to the environment when measuring heat transfer to water.

Calorimeter

This technique allows one to separate two liquids from each other.

distillation

This is the best way to separate components of a sand, salt, and water mixture.

Filtration then evaporation

This is the name of the graph above.

Heating Curve or Cooling Curve

Calorimetry

The specific heat of iron is cal/g ˚C. If 222g of iron at 85.0 ˚C is placed in 105g of water at 20.0 ˚C, what will be the final temperature?

32.1˚C