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Mixtures Solutions Library

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128 solutions

Mixtures

Q. A substance composed of two or more elements in a fixed, definite proportion is:A. a homogeneous mixtureB. a heterogenous mixtureC. a compoundD. a ...

Solved • Sep 15, 2019

Mixtures

Q. A substance that can't be chemically broken down into simpler substances is:A. a homogeneous mixtureB. an elementC. a heterogeneous mixtureD. a com...

Solved • Sep 15, 2019

Mixtures

Q. Choose the pure substance from the list below.A. sea waterB. sugarC. airD. lemonadeE. milk

Solved • Sep 15, 2019

Mixtures

Q. Sugar dissolved in water is best described as ana. homogeneous mixtureb. heterogeneous mixturec. elementd. pure substancee. none of these

Solved • Sep 14, 2019

Mixtures

Q. A solution is also called a

Solved • Sep 13, 2019

Mixtures

Q. How are gases different from solids and liquids? A) Gases are colorless, but solids and liquids are not. B) A gas takes the shape of its container,...

Solved • Sep 13, 2019

Mixtures

Q. Which of the picture(s) below shows a pure substance?A. (i) onlyB. (i) and (iv) onlyC. (i), (iv), (v) and (vi) onlyD. (ii), (iii) and (iv) onlyE. (...

Solved • Sep 12, 2019

Mixtures

Q. How are elements and compounds related?

Solved • Aug 25, 2019

Mixtures

Q. Does the following diagram best describe a crystalline solid, a liquid, or a gas?

Solved • Nov 27, 2018

Mixtures

Q. Liquid nitrogen boils at 77 K. The image shown below depicts a sample of liquid nitrogen.Which image best depics the nitrogen after it has boiled?

Solved • Nov 27, 2018

Mixtures

Q. This molecular diagram shows a sample of liquid water.Which of the diagrams below best depicts the vapor emitted from a pot of boiling water?

Solved • Nov 27, 2018

Mixtures

Q. Based on the following molecular views, classify each substance as an atomic element, a molecular element, an ionic compound, or a molecular compou...

Solved • Oct 31, 2018

Mixtures

Q. How do the molecules of a compound differ from the molecules of an element?

Solved • Oct 25, 2018

Mixtures

Q. In which form of water are the water molecules farthest apart?

Solved • Oct 25, 2018

Mixtures

Q. Classify each of the following as a pure substance, a solution, or a heterogeneous mixture:a gold ingot

Solved • Oct 25, 2018

Mixtures

Q. Classify each of the following as a pure substance, a solution, or a heterogeneous mixture:a cup of coffee

Solved • Oct 25, 2018

Mixtures

Q. Classify each of the following as a pure substance, a solution, or a heterogeneous mixture:a wood plank

Solved • Oct 25, 2018

Mixtures

Q. Musical instruments like trumpets and trombones are made from an alloy called brass. Brass is composed of copper and zinc atoms and appears homogen...

Solved • Oct 25, 2018

Mixtures

Q. A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. The gas has exactly ...

Solved • Oct 25, 2018

Mixtures

Q. A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. The gas has exactly ...

Solved • Oct 25, 2018

Mixtures

Q. The photo below shows a picture of an agate stone. Jack, who picked up the stone on the Lake Superior shoreline and polished it, insists that agate...

Solved • Oct 25, 2018

Mixtures

Q. This image represents a particulate view of a sample of matter.Classify the sample according to its composition.

Solved • Oct 25, 2018

Mixtures

Q. The drawings below accurately represent three samples of matter. Indicate the physical state of each sample.

Solved • Oct 25, 2018

Mixtures

Q. Classify each of the following molecular diagrams as a pure substance or a mixture.

Solved • Oct 25, 2018

Mixtures

Q. Let a triangle represent atoms of element A and a circle represent atoms of element B. Select what is shown on each of the pictures

Solved • Oct 25, 2018

Mixtures

Q. The following diagram represents solid carbon dioxide, also known as dry ice. Which of the following diagrams best represents the dry ice after it ...

Solved • Oct 25, 2018

Mixtures

Q. Classify each of the following molecular diagrams as a pure substance or a mixture. 

Solved • Oct 25, 2018

Mixtures

Q. Each shape represents a type of particle (such as an atom or molecule).Classify each image as a pure substance, homogeneous mixture, or heterogeneo...

Solved • Oct 25, 2018

Mixtures

Q. What is the difference between a homogeneous and a heterogeneous mixture?

Solved • Oct 25, 2018

Mixtures

Q. Classify each substance as an element or a compound.

Solved • Oct 25, 2018

Mixtures

Q. The first diagram depicts a compound in its liquid state.Which of the other diagrams best depicts the compound after it has evaporated into a gas?

Solved • Oct 25, 2018

Mixtures

Q. Let a triangle represent atoms of element A and a circle represent atoms of element B. Select what is shown on each of the pictures.

Solved • Oct 25, 2018

Mixtures

Q. This image represents a particulate view of a sample of matter.Classify the sample according to its composition.

Solved • Oct 25, 2018

Mixtures

Q. Let a triangle represent atoms of element  A and a circle represent atoms of element B. Select what is shown on each of the pictures

Solved • Oct 25, 2018

Mixtures

Q. What are two different ways to classify matter?

Solved • Oct 25, 2018

Mixtures

Q. The diagram represents liquid water molecules in a pan.Which of the three diagrams best represents the water molecules after they have been vaporiz...

Solved • Oct 25, 2018

Mixtures

Q. Explain the following statement in your own words and give an example. The properties of the substances around us depend on the atoms and molecules...

Solved • Oct 25, 2018

Mixtures

Q. If a piece of hard white blackboard chalk is heated strongly in a flame, the mass of the piece of chalk will decrease, and eventually the chalk wil...

Solved • Oct 17, 2018

Mixtures

Q. Suppose a teaspoon of magnesium filings and a teaspoon of powdered sulfur are placed together in a metal beaker. Would this constitute a mixture or...

Solved • Oct 17, 2018

Mixtures

Q. Define the following terms: solid, liquid, gas, pure substance, element, compound, homogeneous mixture, heterogeneous mixture, solution, chemical c...

Solved • Oct 17, 2018

Mixtures

Q. Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more th...

Solved • Oct 17, 2018

Mixtures

Q. A sulfur atom and a sulfur molecule are not identical. What is the difference?

Solved • Oct 15, 2018

Mixtures

Q. Classify each of the following as an element, a compound, or a mixture:(a) iron

Solved • Oct 15, 2018

Mixtures

Q. What properties distinguish solids from liquids? Liquids from gases? Solids from gases?

Solved • Oct 15, 2018

Mixtures

Q. Scenes A–I on the next page depict various types of matter on the atomic scale. Choose the correct scene(s) for each of the following:(a) A mixture...

Solved • Oct 12, 2018

Mixtures

Q. Classify each of the following as a compound, a homogeneous mixture, or a heterogeneous mixture: (d) calcium sulfate

Solved • Oct 12, 2018

Mixtures

Q. Which of the following are examples of homogeneous mixtures?              • Cheddar cheese                • Iced tea with no ice              • Chi...

Solved • Sep 17, 2018

Mixtures

Q. Be sure to answer all parts.Several elements and compounds are given below. (a) Select the compound(s).                     • S8                   ...

Solved • Sep 6, 2018

Mixtures

Q. If it is a mixture, classify it as homogeneous or heterogeneous. (a) White wine is heterogeneous: beef stew is homogeneous. (b) White wine is homog...

Solved • Sep 6, 2018

Mixtures

Q. If it is a pure substance, classify it as an element or a compound. (a) Nickel is a compound: carbon monoxide is an element. (b) Nickel is an eleme...

Solved • Sep 6, 2018

Mixtures

Q. Propane can be decomposed chemically to give carbon and hydrogen in a definite ratio, so propane is:a) a homogenous mixtureb) a heterogenous mixtur...

Solved • Aug 14, 2018

Mixtures

Q.  A deep-sea scuba tank contains helium, oxygen, and traces of other gases. Which of the following describes the gas in the scuba tank? a. O element...

Solved • Aug 14, 2018

Mixtures

Q. 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)

Solved • Jul 16, 2018

Mixtures

Q. Which of the following statements is false? Select one: 

Solved • Jun 18, 2018

Mixtures

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

Solved • Mar 22, 2018

Mixtures

Q. What are the main properties of liquids (in contrast to gases and solids)? Check all that apply.a. Liquids have an indefinite shape and assume the ...

Solved • Mar 22, 2018

Mixtures

Q. 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

Solved • Mar 15, 2018

Mixtures

Q. Is brass an element, compound, or mixture?

Solved • Feb 16, 2018

Mixtures

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

Solved • Feb 15, 2018

Mixtures

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

Solved • Jan 3, 2018

Mixtures

Q. Which choice best represents the species in the figure below?a. Three different compoundsb. A triatomic compound and a diatomic compoundc. Two diff...

Solved • Jul 26, 2017

Mixtures

Q. 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 ex...

Solved • Jul 13, 2017

Mixtures

Q. 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)

Solved • Jul 13, 2017

Mixtures

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

Solved • Jun 16, 2017

Mixtures

Q. Identify a solid.A) definite volume and definite shapeB) definite volume and no definite shapeC) no definite shape and definite volumeD) no definit...

Solved • Jun 16, 2017

Mixtures

Q. 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 ...

Solved • Sep 22, 2016

Mixtures

Q. 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)  ...

Solved • Sep 13, 2016

Mixtures

Q. Which is a pure compound?

Solved • Sep 7, 2016

Mixtures

Q. Which is a pure element? 

Solved • Sep 7, 2016

Mixtures

Q. 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 elemen...

Solved • Sep 7, 2016

Mixtures

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

Solved • Sep 7, 2016

Mixtures

Q. Which of the following is a homogeneous mixture?

Solved • Sep 7, 2016

Mixtures

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

Solved • Aug 25, 2016

Mixtures

Q. Distinguish between the following terms.c. molecule versus compound

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 19, 2016

Mixtures

Q. What is the difference between homogeneous and heterogeneous matter? Classify each of the following as homogeneous or heterogeneous.c. a cup of cof...

Solved • Jul 19, 2016

Mixtures

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

Solved • Jul 18, 2016

Mixtures

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

Solved • Jul 18, 2016

Mixtures

Q. Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more th...

Solved • Jul 18, 2016

Mixtures

Q. Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more th...

Solved • Jul 18, 2016

Mixtures

Q. Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more th...

Solved • Jul 18, 2016

Mixtures

Q. Match each description below with the following microscopic pictures. More than one picture may fit each description. A picture may be used more th...

Solved • Jul 18, 2016

Mixtures

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

Solved • Jul 18, 2016

Mixtures

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

Solved • Jul 18, 2016

Mixtures

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

Solved • Jul 18, 2016

Mixtures

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

Solved • Jul 18, 2016

Mixtures

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

Solved • Jun 29, 2016

Mixtures

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

Solved • Jun 29, 2016

Mixtures

Q. 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. 

Solved • Jun 29, 2016

Mixtures

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

Solved • Jun 29, 2016

Mixtures

Q. 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. 

Solved • Jun 29, 2016

Mixtures

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

Solved • Jun 29, 2016

Mixtures

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

Solved • Jun 29, 2016