HC Ch 2 and 4 Review

Multiple Choice

What is matter composed of?

• Molecules

• Atoms

• Cells

• Ions

Multiple Choice

Which of the following properties does matter have?

• It has no mass

• It occupies space

• It is invisible

• It does not exist in solid form

Multiple Choice

Which state of matter has a rigid substance with a definite shape?

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

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

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

Which of the following statements is true about elements?

• A) Elements can be decomposed into simpler substances.

• B) Elements contain only one kind of atom.

• C) Elements are made of two or more different elements joined together.

• D) Elements often contain discrete molecules.

Multiple Choice

Which of the following is an example of a compound?

• A) Helium (He)

• B) Oxygen (O₂)

• C) Gold (Au)

• D) Water (H₂O)

Multiple Choice

Which of the following is an example of a physical property?

• Flammability

• Shape

• Corrosive

• Toxic

Multiple Choice

What do chemical properties describe?

• The color of a substance

• The ability of a substance to change states of matter

• A substance's ability to change to a different substance

• The size of a substance

Multiple Choice

Which of the following is an example of a physical change?

• Rusting of iron

• Ice melting into water

• Combustion

• Digestion

Multiple Choice

Which of the following is an example of a chemical change?

• Chopping

• Boiling

• Rotting

• Melting

Multiple Choice

Which of the following is an example of a homogeneous mixture?

• Oil and water

• Sand and iron filings

• Salt dissolved in water

• Milk and cereal

Multiple Choice

What is a characteristic of a heterogeneous mixture?

• Same throughout

• Different properties in different regions

• Cannot be separated

• Contains only one type of molecule

Multiple Choice

Approximately how many different elements exist in the universe?

• 50

• 100

• 150

• 200

Multiple Choice

Which of the following is NOT one of the most abundant elements in the human body?

• Oxygen

• Carbon

• Hydrogen

• Calcium

Multiple Choice

Which of the following is NOT a part of Dalton's Atomic Theory?

• All elements are made of atoms

• Atoms of the same element are identical

• Atoms can be created or destroyed in chemical reactions

• Compounds consist of atoms from different elements

Multiple Choice

What do chemical formulas represent?

• The physical state of compounds

• The color of compounds

• Compounds using element symbols and subscripts

• The temperature at which compounds react

Multiple Choice

Which particles are found in the nucleus of an atom?

• Electrons and protons

• Protons and neutrons

• Neutrons and electrons

• Only protons

Multiple Choice

What does the atomic notation 'A' represent?

• Atomic number

• Mass number

• Number of protons

• Number of electrons

Multiple Choice

What does the periodic table organize by increasing order?

• Atomic mass

• Atomic number

• Number of neutrons

• Number of protons

Multiple Choice

What is a characteristic of nonmetals on the periodic table?

• Tend to give up electrons

• Tend to accept electrons

• Are usually lustrous

• Are good conductors of heat and electricity

Multiple Choice

Which group of elements is known for being highly reactive metals?

• Alkaline Earth Metals

• Halogens

• Alkali Metals

• Noble Gases

Multiple Choice

Which group of elements is extremely stable and unreactive?

• Alkali Metals

• Noble Gases

• Halogens

• Transition Metals

Multiple Choice

How are cations usually formed?

• By nonmetals losing electrons

• By metals gaining electrons

• By metals losing electrons

• By metals gaining protons

Multiple Choice

How are anions named?

• Using only the parent atom's name

• Using the root of the atom name + "-ide" suffix

• Using the suffix "-ate" after the atom name

• Using the prefix "hydro" before the atom name

Multiple Choice

Which group of elements on the periodic table forms 1+ ions?

• Group 1A

• Group 2A

• Group 7A

• Group 6A

Multiple Choice

Group 6A elements typically form which type of ions?

• 1+ ions

• 2+ ions

• 1- ions

• 2- ions

Multiple Choice

What are ionic compounds formed from?

• Metals and nonmetals

• Metals and metals

• Nonmetals and nonmetals

• Gases and liquids

Multiple Choice

What is the overall electrical charge of ionic compounds?

• Positive

• Negative

• Neutral

• Varies