Chemistry 1st semester reviw

In a chemical reaction, the type of products obtained is largely determined by which part of the reacting chemicals?

• Protons
• Electrons
• Neutrons
• Nuclei

A horizontal row of the periodic table is usually referred to as a

• family
• period
• group
• property

An example of an property of matter is

• temperature
• pressure
• mass
• hardness

Which of the following is a physical property?

• explosive
• combustible
• melting point
• ability to rust

Which state of matter takes both the shape and volume of its container?

• Solid
• Liquid
• Gas
• none of the above

Which state of matter expands when heated and is easy to compress?

• Solid
• Liquid
• Gas
• none of the above

Which of the following is a physical property of a substance in the liquid state?

• definite volume
• indefinite mass
• not easily compressed
• definite shape

Which of the following is a physical change?

• corrosion
• explosion
• evaporation
• rotting of food

Which of the following is a mixture?

• vinegar in water
• milk
• oil and vinegar
• air

Which of the following is a homogeneous mixture?

• salt water
• beef stew
• sand and water
• soil