Particle Model of Matter
1. Which statement does NOT align with the Particle Model of Matter?
○ A) All matter is composed of extremely tiny particles.
○ B) Particles are always stationary in their respective states.
○ C) There are spaces between particles.
○ D) Particles attract one another.
Homogeneous Mixtures
2. Which of the following is TRUE about homogeneous mixtures?
○ A) They can be easily separated by filtration.
○ B) They are also known as mechanical mixtures.
○ C) They are usually clear and uniformly scattered.
○ D) They consist of visibly different substances or phases.
Chemical vs. Physical Change
3. What distinguishes a chemical change from a physical change?
○ A) Physical changes result in the formation of new substances.
○ B) Chemical changes can be easily reversed.
○ C) Chemical changes involve a change in chemical composition.
○ D) Physical changes alter the substance’s chemical composition.
Physical Properties
4. Identify a physical property from the following:
○ A) Flammability
○ B) pH
○ C) Density
○ D) Reactivity with other chemicals
States of Matter
5. Which phase of matter has particles that are closely packed with strong attractive forces
and minimal energy?
○ A) Solids
○ B) Liquids
○ C) Gases
○ D) Plasmas
Law of Conservation of Mass
, 6. The Law of Conservation of Mass states:
○ A) During a chemical reaction, the mass of new substances produced is less than
the original substances.
○ B) Matter can be created or destroyed in a chemical reaction.
○ C) The total mass of the new substances produced is equal to the total mass of
the original substances.
○ D) Matter can neither gain nor lose energy during a chemical reaction.
Chemical Properties
7. Which property is observed when a substance reacts with another substance?
○ A) Color
○ B) Texture
○ C) State of matter
○ D) Flammability
Chemical Changes
8. Which of these processes exemplifies a chemical change?
○ A) Boiling water
○ B) Melting an ice cube
○ C) Crushing a can
○ D) Baking a cake
Atomic Structure
9. How is an element characterized in terms of its atomic structure?
○ A) By the number of neutrons in its nucleus.
○ B) By its atomic mass which equals the sum of protons and electrons.
○ C) By its atomic number which represents the number of protons in the nucleus.
○ D) By its atomic symbol which indicates the element’s electron count.
Chemical Reactions
10.When an atom loses electrons during a chemical reaction, it becomes:
○ A) Negatively charged and is referred to as an anion.
○ B) Neutral and forms a stable molecule.
○ C) Positively charged and is referred to as a cation.
○ D) Negatively charged and referred to as a cation.
Metals vs. Nonmetals
11.Which characteristic does NOT apply to metals according to the periodic table
classification?
1. Which statement does NOT align with the Particle Model of Matter?
○ A) All matter is composed of extremely tiny particles.
○ B) Particles are always stationary in their respective states.
○ C) There are spaces between particles.
○ D) Particles attract one another.
Homogeneous Mixtures
2. Which of the following is TRUE about homogeneous mixtures?
○ A) They can be easily separated by filtration.
○ B) They are also known as mechanical mixtures.
○ C) They are usually clear and uniformly scattered.
○ D) They consist of visibly different substances or phases.
Chemical vs. Physical Change
3. What distinguishes a chemical change from a physical change?
○ A) Physical changes result in the formation of new substances.
○ B) Chemical changes can be easily reversed.
○ C) Chemical changes involve a change in chemical composition.
○ D) Physical changes alter the substance’s chemical composition.
Physical Properties
4. Identify a physical property from the following:
○ A) Flammability
○ B) pH
○ C) Density
○ D) Reactivity with other chemicals
States of Matter
5. Which phase of matter has particles that are closely packed with strong attractive forces
and minimal energy?
○ A) Solids
○ B) Liquids
○ C) Gases
○ D) Plasmas
Law of Conservation of Mass
, 6. The Law of Conservation of Mass states:
○ A) During a chemical reaction, the mass of new substances produced is less than
the original substances.
○ B) Matter can be created or destroyed in a chemical reaction.
○ C) The total mass of the new substances produced is equal to the total mass of
the original substances.
○ D) Matter can neither gain nor lose energy during a chemical reaction.
Chemical Properties
7. Which property is observed when a substance reacts with another substance?
○ A) Color
○ B) Texture
○ C) State of matter
○ D) Flammability
Chemical Changes
8. Which of these processes exemplifies a chemical change?
○ A) Boiling water
○ B) Melting an ice cube
○ C) Crushing a can
○ D) Baking a cake
Atomic Structure
9. How is an element characterized in terms of its atomic structure?
○ A) By the number of neutrons in its nucleus.
○ B) By its atomic mass which equals the sum of protons and electrons.
○ C) By its atomic number which represents the number of protons in the nucleus.
○ D) By its atomic symbol which indicates the element’s electron count.
Chemical Reactions
10.When an atom loses electrons during a chemical reaction, it becomes:
○ A) Negatively charged and is referred to as an anion.
○ B) Neutral and forms a stable molecule.
○ C) Positively charged and is referred to as a cation.
○ D) Negatively charged and referred to as a cation.
Metals vs. Nonmetals
11.Which characteristic does NOT apply to metals according to the periodic table
classification?
