Mixtures, Compounds And Elements

Question 0

Two or more elements(atoms) chemically combined to form a new substance with new properties.

Answer 0

Compound

Question 1

A pure substance, the periodic table is a list of these substances.

Answer 1

Elements

Question 2

A mix of elements or compounds that are not chemically combined. The parts can be separated by physical means.

Answer 2

Mixture

Question 3

How can you separate a mixture of salt, sand, and iron filings?

Answer 3

Use a magnet to pull out the iron, then add water to dissolve the salt. Pour the sand, salt, and water through a filter to remove sand. Finally boil water and salt is left behind.

Question 4

A certain kind of mixture that is the same throughout (homogeneous). Example: salt water, koolade.

Answer 4

Solution

Question 5

H20, CO2, NaCl…

All are examples of (compound or element?)

Answer 5

Compound, because they are a combination a 2 or more elements together. (H, O, Na, Cl, C are all separate elements)