General Characteristics of Substances
Substances in which components cannot be seen with the naked eye
Homogeneous Substances
Type of Mixture in which components are evenly distributed
Homogeneous Mixture
It is defined as the amount of Solute on a mixture
Concentration
Pick from the list those methods that use GRAVITY to sepparate substances
Filtering, Evaporation, Decantation, Chromatography
Filtering and Decantation
Substances in which different components can be distinguish
Heterogeneous Substances
Type of Mixture in which components are NOT evenly distributed
Heterogenous Mixture
Classify the following from greatest amount to lesser amount of solute.
a) Concetrated b) Diluted c) Saturated
c) Saturated a) Concetrated b) Diluted
Pick from the list those methods that use PARTICLE SIZE to separate components
Filtering, Sieving, Decantation, Distillation
Filtering, Sieving
Pick from the list the substances that are Homogeneous:
Water, Wood, Oil, Copper, Cement, Fruit Shake
Water, Oil, Copper,
A mixture of Salt and Water has: 110 g of Salt and 900 g of Water. Which of the substances is the SOLUTE?
Salt
How much Salt a solution has if is 5% mass and the total amount of solution is 500 g?
25 g of Salt
Pick from the list those methods that use Boiling Point to separate components
Evaporation, Sieving, Decantation, Distillation
Evaporation, Distillation
It's an specific property of Water:
a) Boiling Point 100°C
b) Odorless
c) Colorless
d) Liquid at room temperature
a) Boiling Point 100°C
Heterogeneous Mixtures can be ______ and _______
Colloids - Suspensions
How much Water a solution must have if it containts 10 mL of Alcohol and the concentration is 20% Volume?
40 mL
Match the mixture with the method that separate its components the best.
a) Water/Salt | Chromatography
b) Oil (Petrol) | Filtering
c) Sand/Water | Distillation
d) Ink | Evaporation
a) Water/Salt | Evaporation
b) Oil (Petrol) | Distillation
c) Sand/Water | Filtering
d) Ink | Chromatography
1) Pure Substances can be Heterogenous
2) Compounds can be Pure Substances
3) An Homogeneous Mixture can be a Pure Substance
4) An Heterogeneous Mixture can be made of one compound
2) Compounds can be Pure Substances
A mixture of Salt and Water has: 110 g of Salt and 900 g of Water. Calculate the percent composition
10.9%
If the healthy amount of Cafeine per day is 400 mg and a can of 250 mL Red Bull contains 0.4 mg/mL. How many cans per day are considered unhealthy to take?
Over 4 cans
How would you separate a mixture of soil that contains the following?
Iron debris, Sawdust, Dirt and Salt.
You can use WATER. Describe 4 steps of separation
Step 1. Magnetic Separation of Iron debris
Step 2. Flotation of Sawdust in water
Step 3. Filtering of the Dirt
Step 4. Evaporation of Salt