FREE AND STUDY GAMES ABOUT CHEMICAL PHYSICAL

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EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -22 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: hardness

Answer:

Physical property; the measure of how difficult or easy it is to scratch a substance

Question 2: Examples of physical properties

Answer:

Color, odor, size, hardness, luster, phase of matter, mass, density, boiling point, melting point, solubility, conductivity

Question 3: wieght

Answer:

Physical property; measures the force of gravity on an object

Question 4: Chemical property

Answer:

A trait or behavior of a substance that gives it the ability or inability to undergo a chemical change; can only be observed when the substance is going through a chemical change or reaction

Question 5: luster

Answer:

Physical property; describes how light is reflected off of the surface of an object (How shiny is it?)

Question 6: Chemical change

Answer:

Occurs when a substance undergoes a change that creates a new substance with different chemical and physical properties than the original substance; change is not

Question 7: toxicity

Answer:

Chemical property; the ability and strength of a substance to cause poisonous effects to living things

Question 8: density

Answer:

Physical property; how tightly packed the atoms in an object are; mass divided by volume

Question 9: Physical change

Answer:

Change that happens without changing the chemical composition of a substance; no new substance is formed; usually (but not always) reversible

Question 10: size

Answer:

Physical property; can be measured without altering the chemical makeup of the substance

Question 11: mass

Answer:

Physical property; measures the amount of matter in an object

Question 12: odor

Answer:

Physical property; many substances have a noticeable odor

Question 13: combustion

Answer:

Chemical property; a chemical reaction that produces heat and light

Question 14: Combustibility and flammability

Answer:

Chemical property; the ability a substance has to burn

Question 15: Electrical conductivity

Answer:

Physical property; the measure of a material's ability to allow the transport of an electrical charge

Question 16: Physical property

Answer:

A characteristic of matter that can be observed and measured without changing the identity or chemical makeup of the substance

Question 17: Melting point

Answer:

Physical property; the point at which a substance changes from a solid to a liquid

Question 18: color

Answer:

Physical property; can be observed by looking at it

Question 19: Boiling point

Answer:

Physical property; the point at which a substance changes from a liquid to a gas

Question 20: reactivity

Answer:

Chemical property; how easily an atom has a chemical reaction with another element

Question 21: Examples of chemical properties

Answer:

reactivity, combustibility (flammability), and toxicity

Question 22: solubility

Answer:

Physical property; the measure in which an object dissolves into another object