Welcome to AP chemistry review Day 1
Matter & Measurement Chapter 1
Chemical and physical processes A combination of sand, salt, and water is an example of a ________. A) homogeneous mixture B) heterogeneous mixture C) compound D) pure substance E) solid
Chemical and physical processes A combination of sand, salt, and water is an example of a ________. A) homogeneous mixture B) heterogeneous mixture C) compound D) pure substance E) solid
Chemical and physical processes An element cannot ________. A) be part of a heterogeneous mixture B) be part of a homogeneous mixture C) be separated into other substances by chemical means D) interact with other elements to form compounds E) be a pure substance
Chemical and physical processes An element cannot ________. A) be part of a heterogeneous mixture B) be part of a homogeneous mixture C) be separated into other substances by chemical means D) interact with other elements to form compounds E) be a pure substance
Chemical and physical processes Of the following, only ________ is a chemical reaction. A) melting of lead B) dissolving sugar in water C) tarnishing of silver D) crushing of stone E) dropping a penny into a glass of water
Chemical and physical processes Of the following, only ________ is a chemical reaction. A) melting of lead B) dissolving sugar in water C) tarnishing of silver D) crushing of stone E) dropping a penny into a glass of water
Chemical and physical processes Which one of the following is the highest temperature? A) 38 °C B) 96 °F C) 302 K D) none of the above E) the freezing point of water
Chemical and physical processes Which one of the following is the highest temperature? A) 38 °C B) 96 °F C) 302 K D) none of the above E) the freezing point of water
Apple juice is an example of a(an) element. compound. homogeneous mixture. heterogeneous mixture. Answer: c
Apple juice is an example of a(an) element. compound. homogeneous mixture. heterogeneous mixture. Answer: c
Which of the following is not a pure substance? water carbon dioxide carbon air Answer: d
Which of the following is not a pure substance? water carbon dioxide carbon air Answer: d
solids. liquids. gases. All of the above Solutions may be solids. liquids. gases. All of the above Answer: d
solids. liquids. gases. All of the above Solutions may be solids. liquids. gases. All of the above Answer: d
Descriptions of a sample that are based on the amount of substance are called physical properties. chemical properties. intensive properties. extensive properties. Answer: d
Descriptions of a sample that are based on the amount of substance are called physical properties. chemical properties. intensive properties. extensive properties. Answer: d
Properties that describe the way a substance reacts to form other substances are called physical properties. chemical properties. homogeneous properties. heterogeneous properties. Answer: b
Properties that describe the way a substance reacts to form other substances are called physical properties. chemical properties. homogeneous properties. heterogeneous properties. Answer: b
Acetic acid that was liquid when stored was solid when a student looked for it on a cold morning. This illustrates a change in solubility. a chemical change. an equilibrium state. a physical change. Answer: d
Acetic acid that was liquid when stored was solid when a student looked for it on a cold morning. This illustrates a change in solubility. a chemical change. an equilibrium state. a physical change. Answer: d