AP I - O'Neal - Ch. 2 & 4 Review

Matter is defined as anything that:

• Has energy but no mass

• Has mass and occupies space

• Occupies space but has no weight

• Is only solid or liquid

Which of the following is the smallest unit of matter?

• Atom

• Molecule

• Compound

• Cell

Tags

NGSS.MS-PS1-1

The atomic number of an element is equal to the number of:

• Protons

• Neutrons

• Electrons

• Bonds

Isotopes differ in the number of:

• Protons

• Neutrons

• Electrons

• Bonds

Tags

NGSS.HS-PS1-8

A molecule that results when two or more atoms share electrons is called a:

• Ion

• Compound

• Molecule

• Proton

Tags

NGSS.HS-LS1-6

Which bond involves the transfer of electrons from one atom to another?

• Covalent

• Hydrogen

• Ionic

• Metallic

Which type of bond is weakest but important in water and DNA?

• Ionic bond

• Hydrogen bond

• Covalent bond

• Metallic bond

Energy stored in chemical bonds is a form of:

• Kinetic energy

• Mechanical energy

• Potential energy

• Thermal energy

Tags

NGSS.HS-PS1-4

The first law of thermodynamics states that energy:

• Can be created but not destroyed

• Can be destroyed but not created

• Cannot be created or destroyed, only transformed

• Increases spontaneously in all systems

Which type of chemical reaction results in larger, more complex molecules?

• Decomposition

• Exchange

• Synthesis

• Oxidation