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Elements
Compounds
Mixtures
Solutions
Colloids and suspensions
100
What is an element?
A pure substance that cannot be separated into simpler substances by physical or chemical means
100
What is a compound?
A pure substance composed of 2 or more elements that are chemically combined
100
What is a mixture?
Combination of 2 or more substances that are not chemically combined
100
What is a solution?
A mixture that appears to be a single substance
100
What is a colloid?
a mixture that has properties of both solutions and suspensions. the particles are dispersed throughout but are not heavy enough to settle out.
200

What is the name of the table that lists all of the elements?

Periodic Table

200

Compounds must have at least 2 different atoms bonded together. True or False

True

200
Solutions, suspensions and colloids are all types of mixtures. True or False
True
200

Give 2 examples of things that are soluble in water

salt, sugar

200

What is a suspension?

A mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas. The particles are heavy so eventually they settle down.

300

Give an example of an element.

24K gold, pure oxygen

300

Compounds can be separated using separation techniques like filtration or distillation. True or False

False

300
Describe three ways in which we can separate mixtures
distillation, centrifuge, evaporation, filtration
300

What is a solute? What is a solvent?

solute- substance that is being dissolved solvent- substance in which the solute is dissolved

300

What Effect can be used to tell a solution and colloid apart

Tyndall Effect

400

What is the symbol of the following elements: -Potassium -Hydrogen - Carbon - Aluminum

- K- H - C - Al

400

Compounds are mixtures. True or False

False

400
Give an example of a mixture, a solution, a colloid and a suspension
pizza, salt and water, mayonnaise, snow globe
400

Name the solute and the solvent in coffee

solute is coffee, solvent is water

400

give three examples of a colloid

milk, jelly, whipped cream

500

Name the names of the following symbols: - Mg - Li - N - He

- Magnesium - Lithium - Nitrogen - Helium

500

Name the elements in the compound NaCl

sodium and chlorine

500
How can you separate a mixture of salt, pepper and pebbles?
1- use a strainer to get the pebbles 2- add water to the resulting salt and pepper 3- pass the solution through a filter and get the pepper 4- evaporate the water and get the salt
500

Name 2 characteristics of solutions

homogenous, clear, lets light pass thru
500

What is the difference between a colloid and a suspension?

The particles in a colloid are dispersed throughout but are not heavy enough to settle out. The particles in a suspension, however, are more or less evenly dispersed throughout the liquid or gas but eventually settle down