Body Chemistry Strand 2 Review

What are the states of matter?

• solid, liquid, and juice
• solid and liquid
• solid and gas
• solid, liquid, and gas

The positive particles of an atom are

• electrons

• positrons

• neutrons

• protons

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

Mr Negative here is better known as? His charge is negative.

• Protron
• Neutron
• Electron
• Neceus

Which of the following chemical formulas represents a compound? 

• C₃
• O₂
• CH₃CHO
• H₂

Which statement best describes an element?

• made from mixture 
• thousands in the world
• pure, made of only one atom
• can be separated 

Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –

• a gas at room temperature.
• made of two different elements.
• given off by green plants.

What is the term for combining 2 or more atoms together?

• atoms
• elements
• molecules
• compounds

What is the term for combining 2 or more DIFFERENT atoms together?

• atoms
• elements
• molecules
• compounds

What is a cation's charge?

• positive

• negative

• neutral

• depends on the element