Composition of Matter 2

What are the 2 main groups of mixtures?

• Elements and Compounds
• Heterogeneous and Homogeneous
• Plants and Animals
• Mixtures and Pure Substances

How are heterogeneous mixtures different than homogeneous mixtures?

• The parts are visible in heterogeneous mixtures
• The parts are visible in homogeneous mixtures
• Only heterogeneous can be seperated
• Only homogeneous are edible

Trail mix, a bin of crayons, and a clock are all examples of

• Heterogeneous mixtures
• Homogeneous mixtures
• Compounds
• Things you can eat

Coffee, air, and red-bull are all examples of

• Heterogeneous mixtures
• Homogeneous mixtures
• Compounds
• Things you need to stay alive

What is the basic unit of matter

• atoms

• compounds

• pure substances

• mixtures

What would you find in the center or nucleus of an atom?

• protons
• neutrons
• protons and neutrons
• electrons

What would you find swarming around the center or nucleus of an atom?

• protons
• neutrons
• electrons
• electrons and protons

What charge does a proton have?

• Positive
• Negative
• No charge
• They don't actually exist, therefore, there is no charge

What charge does an electron have?

• positive
• negative
• no charge
• positive or negative depending on where it is

How is a molecule different than a mixture?

• Molecules are chemically bound together, mixtures are not

• Mixtures are chemically bound together, molecules are not

• Molecules are more common than mixtures

• Mixtures have different atoms, molecules do not