Semester Exam Review

1.  What do protons and electrons have in common? 

• They both have no charge
• They have a charge of some sort
• They are located in the nucleus
• They both have a positve charge

1.  What substance is formed after a chemical reaction? 

• Product
• Reactant
• subscript
• Coefficient

What is a covalent bond

• A bond between a metal and a non-metal
• a bond between a metal and a metal
• a bond between a non metal and a non metal
• a bond between a noble gas and a metal

Horizontal rows on the periodic table are called? 

• groups
• families
• periods
• transition metals

Name the only liquid metal at room temperature

• magnesium
• titanium
• mercurty
• phosphorous

What is a solute? 

• the substance that does the dissolving
• the substance that is being dissolved
• the substance that stays the same
• water

What is the term for when no more solute can be dissolved in a solvent?

• concentrated
• diluted
• saturated
• blasted

Balance:P
KI + Pb (NO₃)₂ -> KNO₃ + PbI₂

• KI + Pb (NO₃)₂ -> KNO₃ + PbI₂
• 2KI + Pb (NO₃)₂ -> 2KNO₃ + PbI₂
• KI + Pb (NO₃)₂ -> KNO₃ + PbI₂
• KI + Pb (NO₃)₂ -> KNO₃ + PbI₂

What is an example of a good insulator

• wool
• cotton

What is radiation

• must have a breeze
• direct contact between two objects
• has to do with Plasmas
• occurs because of Electromagnetic waves