Classification of Matter

Consider the following substances: I. Gatorade II. Crystalline sugar III. Copper wire IV. Salsa Which of the following is true? A. I and III are pure substances, IV is a homogeneous mixture. B. I and II are homogeneous mixtures. C. Both II and III are pure substances, I is a homogeneous mixture. D. None of the above is true.

Choose the homogeneous mixture from the list below. A. Ice water B. Wet sand C. Trail mix D. Plain black coffee E. Chocolate chip cookie

Which of the following is a compound? A. Hydrogen B. Water C. Helium D. Seawater E. Magnesium 

Choose the homogeneous mixture from the list below. A) soda (pop) B) air C) concrete D) trail mix E) blood

Which of the following statements about the phases of matter is TRUE? A) In both solids and liquids, the atoms or molecules pack closely to one another. B) Solids are highly compressible. C) Gaseous substances have long-range repeating order. D) There is only one type of geometric arrangement that the atoms or molecules in any solid can adopt. E) Liquids have a large portion of empty volume between molecules.

Two or more substances in variable proportions, where the composition is constant throughout are considered A) a compound. B) an element. C) a heterogeneous mixture. D) a homogeneous mixture. E) a crystalline solid.

Two or more substances in variable proportions, where the composition is variable throughout are considered A) a solution. B) a homogeneous mixture. C) a compound. D) an amorphous solid.. E) a heterogeneous mixture.

Which of the following is a homogeneous mixture?

When a purple liquid was distilled, a blue liquid separated from a red solid.  What is the most likely identity of the purple liquid? a) an element b) some unknown entity c) a solution d) a compound e) a pure substance

Consider the following substance I. saline IV solution II. salt (NaCl) III. aluminum foil IV. salad dressing Which of the following is true? A) I and III are pure substances, IV is a homogeneous mixture. B) I and II are homogeneous mixtures C) Both II and III are pure substances, I is a homogeneous mixture D) None of the above is true

A substance that can't be chemically broken down into simpler substances is A) a homogeneous mixture. B) an element. C) a heterogeneous mixture. D) a compound. E) an electron.

Which of the following is NOT an example of a solution? (A) bronze (B) the atmosphere (C) sterling silver (D) Gatorade (E) all of these are examples of solutions

A homogeneous mixture of two or more substances is called:a) a compound.b) an electrolyte.c) a solution.d) a solvent.e) a mess.

Answer each of the following questions based on the images provided below. 

Classify the following as a pure substance or mixture (what kind).A) SmokeB) A bar of goldC) AirD) SaltE) Baking sodaF) HoneyG) Fruit Salad 

These figures represent examples of matter and its composition. Which statement is INCORRECT?

Choose the pure substance from the list below.A. SeawaterB. AirC. Carbon monoxideD. LemonadeE. Soda 

Which of the following is a greeenhouse gas.A. Water vaporB. Carbon dioxideC. MethaneD. OzoneE. All of the above

Molecules can be described asA) a mixture of two or more pure substances.B) a mixture of two or more elements that has a specific ratio between components.C) two or more atoms joined together in a specific geometric arrangement.D) a heterogeneous mixtureE) a homogeneous mixture

A substance that canʹt be chemically broken down into simpler substances is consideredA) a homogeneous mixture.B) an element.C) a heterogeneous mixture.D) a compound.E) an electron.

Which diagrams represent the pure substances?(A) 1 and 2(B) 1 and 3(C) 2 and 3(D) 2 and 4

Explain the difference between an element and a compound.

Explain the difference between an element and a compound.

Which of the following figures represents (a) a pure element? (More than one picture might fit each descríption.)[Section 1.2] 

Which of the following figures represents  (b) a mixture of two elements? (More than one picture might fit each descríption.)[Section 1.2] 

Which of the following figures represents (c) a pure compound? (More than one picture might fit each descríption.)[Section 1.2] 

Which of the following figures represents (d) a mixture of an element and a compound? (More than one picture might fit each descríption.)[Section 1.2] 

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous:  (b) seawater. 

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous:  (c) magnesium.

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (d) gasoline. 

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (d) crushed ice. 

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (a) air. 

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (b) tomato juice. 

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (c) iodine crystals. 

Give four examples illustrating each of the following terms.a. homogeneous mixture

Give four examples illustrating each of the following terms.b. heterogeneous mixture

Give four examples illustrating each of the following terms.c. compound

Give four examples illustrating each of the following terms.d. element

Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more than once or not used at all.a. a gaseous compound

Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more than once or not used at all.b. a mixture of two gaseous elements

Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more than once or not used at all.c. a solid element

Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more than once or not used at all.d. a mixture of a gaseous element and a gaseous compound

What is the difference between homogeneous and heterogeneous matter? Classify each of the following as homogeneous or heterogeneous.a. a door

What is the difference between homogeneous and heterogeneous matter? Classify each of the following as homogeneous or heterogeneous.b. the air you breathe

What is the difference between homogeneous and heterogeneous matter? Classify each of the following as homogeneous or heterogeneous.c. a cup of coffee (black)

What is the difference between homogeneous and heterogeneous matter? Classify each of the following as homogeneous or heterogeneous.d. the water you drink

What is the difference between homogeneous and heterogeneous matter? Classify each of the following as homogeneous or heterogeneous.e. salsa

What is the difference between homogeneous and heterogeneous matter? Classify each of the following as homogeneous or heterogeneous.f. your lab partner

Classify the following mixtures as homogeneous or as heterogeneous.a. potting soil

Classify the following mixtures as homogeneous or as heterogeneous.b. white wine

Classify the following mixtures as homogeneous or as heterogeneous.c. your sock drawer

Classify the following mixtures as homogeneous or as heterogeneous.d. window glass

Classify the following mixtures as homogeneous or as heterogeneous.e. granite

Sea water is an example of a. a compound b. an element c. a heterogeneous mixture d. a homogenous mixture

Which is a pure element? 

Which is a pure compound?

The figure shows all but which of the following:A)  two elements and a compound.B)  a chemical reaction.C)  one mixture and one pure substance.D)  three compounds.E)  five molecules.

Which of the following formulas refers to a pure element?(A) H2O(B) H2O2(C) O2(D) Xf(E) answer to both (C) and (D)

Which choice best represents the species in the figure below?a. Three different compoundsb. A triatomic compound and a diatomic compoundc. Two different compounds and one elementd. Five molecules of one compound, two molecules of a second compound and one molecule of an elemente. One compound and two different elements

Which of the following is a homogeneous mixture? (a) copper (b) salt water (c) carbon dioxide (d) salad (e) neon

Is brass an element, compound, or mixture?

Which of the following is not an example of matter?a. carbon dioxide in your exhaled breathb. steamc. heat from a barbeque grill

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (d) sand. 

Which of the following is a heterogeneous mixture?a. A bottle of brine (slightly salty water).b. A dish of steamed vegetables, fresh from the microwave oven.c. The contents of a balloon containing helium, nitrogen, and oxygen gases.d. A beaker containing a well-stirred mixture of ethanol (drinking alcohol) and watere. All of the above.

Which of the following is a homogeneous mixture? a. gasoline b. vegetable oil and water c. sugar dissolved in water d. a and c e. a, b, and c

Which of the following are mixtures? Check all that apply. (a) water (H2O) (b) salt (NaCl) (c) salt water (d) air (mostly N2 and O2)

Propane can be decomposed chemically to give carbon and hydrogen in a definite ratio, so propane is:a) a homogenous mixtureb) a heterogenous mixturec) a solutiond) an elemente) a compound

If it is a mixture, classify it as homogeneous or heterogeneous. (a) White wine is heterogeneous: beef stew is homogeneous. (b) White wine is homogeneous: beef stew is heterogeneous. (c) Both are homogeneous. (d) Both are heterogeneous.

Is Air an element, a compound, or a mixture?

Classify each of the following as a pure substance or a mixture.  If a mixture, indicate homogeneous or heterogeneous a)  airb)  tomato juicec)  iodine crystalsd)  sand