Chapter 6.1: Substances and Mixtures Flashcards
- understand and classify matter - differentiate between substances and mixtures, mixtures and compounds, and compounds and solutions - relate atoms, molecules, elements, and compounds - explain the two types of mixtures - understand how to separate mixtures
Anything that has mass and takes up space is?
Matter
A small particle that is the building block of life.
Atom
All matter is made of atoms, true or false?
True
All matter can be put into two groups, what are they?
Substances (pure) and mixtures (homogeneous and heterogeneous).
“Matter with a composition that is always the same.” What is this the definition of?
Substance
Gold and table salt are both examples of substances or mixtures?
Substances as their composition wont change.
Substances made of only one kind of atom are called?
Elements, example is gold
Two or more of the same atoms chemically joined together are called?
Molecules. Example O2 (oxygen)
A substance made when two or more different atoms are chemically joined together.
Compound. Example is carbon dioxide.
Matter that can vary in composition is called?
A mixture
In mixtures the particles are physically mixed (blended) but not chemically joined. True or false?
True. They can be separated because they are not chemically joined. Example, sugar water or sand and water.
A mixture where substances are not evenly mixed is called?
Heterogeneous mixture. Example, salad.
A mixture in which two or more substances are evenly mixed is called?
Homogeneous mixture. Example is salt water.
Another name for a homogeneous mixture is?
A solution.
What is the difference between a solvent and a solute?
In a solution, the solvent is in the largest part and the solute is the smaller part that dissolves.
Example: water is a solvent and salt is the solute.
