Mixtures

Topic Page

Questions

• What are some examples of mixtures?
• How do compounds and mixtures differ?
• How can mixtures be classified?
• How do mixtures affect boiling point?
• What mixtures are heterogeneous?
• What mixtures can be separated by chromatography?
• What mixtures can be separated by paper chromatography?
• How does the melting point of the substances change in a mixture?
• What is an azeotrope?
• Why does an oil-and-vinegar salad dressing have two separate layers?
• Question #f6ecc
• Is a solution a homogenous mixture?
• Making mayonnaise involves beating oil into small droplets in water, in the presence of egg yolk. What is the purpose of the egg yolk?
• Could a mixture be made up of only elements and no compounds?
• What is the type of mixture whose components are evenly distributed throughout?
• Why is #CH_3OH# miscible in water whereas #CH_3(CH_2)_6OH# is not?
• Question #3481a
• You open your lunch and you find your favorite: a ham and cheese sandwich with extra mayonnaise, a cup of chicken and vegetable soup, and a stainless steel thermos of cola. What are 3 different types of mixtures found in your lunch?
• A 14-karat gold ring contains other metals that make it stronger than pure gold. What is this type of mixture called?
• Why is sodium chloride solution a mixture?
• #6# #ft^3# of soil containing #35%# clay was mixed into #4# #ft^3# of soil containing #20%# clay. What is the clay content of the mixture?
• What is a homogeneous mixture?
• Is a solution a homogeneous mixture or a heterogeneous mixture?
• Are sand, salt, and water heterogenous or homogenous mixtures?
• Is house paint a homogeneous mixture?
• Is milk a homogeneous or heterogeneous mixture?
• Is salt an element, a compound, a homogenous mixture, or heterogeneous mixture?
• What properties of milk qualify it as heterogeneous?
• What is a homogeneous mixture?
• What is the difference between a homogeneous and a heterogeneous substance?
• Why is wood a heterogeneous mixture?
• Is a suspension a homogeneous or a heterogeneous mixture?
• Is brass a homogeneous or heterogeneous mixture?
• Is coffee homogenous?
• Is rain water heterogeneous or homogeneous?
• Is gelatin an element, compound, suspension, heterogeneous mixture, homogeneous mixture or colloid?
• What is a homogenous mixture?
• Are colloids heterogenous mixtures or homogenous mixtures?
• Is air an element, compound, homogeneous mixture, or a heterogeneous mixture?
• Is tap water a homogeneous or heterogeneous mixture?
• What is a heterogenous mixture?
• Is blood a homogeneous mixture or a heterogeneous mixture?
• Question #b7c73
• A chemical compound requires 8 ounces of Chemical A and 12 ounces of Chemical B. A mixture contains 24 ounces of Chemical A and 30 ounces of Chemical B. How can you fix the mixture to make the chemical compound?
• Question #65722
• A solid is stirred into a liquid and dissolves. Which type of mixture forms?
• Question #ee484
• How many phases are in a homogeneous mixture?
• An alloy of tin is 15% tin and weighs 20 pounds. A second alloy is 10% tin. How many pounds of the second alloy must be added to the first to get a 12% mixture?
• What are examples of gas mixtures?
• Question #df175
• Question #a7d61
• What is a mixture in which particle size averages between 1 nm and 1000 nm?
• What mixture type is characterized by the settling of particles?
• What is a combination of two or more pure substances in which each retains its own individual chemical properties?
• Is air a homogeneous mixture?
• Which of these are pure substances and which are mixtures?
• Why soft drink is a mixture but water is a compound?
• Question #f9fd6
• What differences would be observed between the mixture of salt and sand in the 250-mL beaker and the same materials after the water was added?
• How would you classify each of the following as element, compound, or mixture?
• Question #3bfb1
• A pharmacist needs to obtain a 70% alcohol solution. How many ounces of a 30% solution must be mixed with 40 ounces of an solution to obtain a 70% solution?
• What is the physical state of gasoline at room temperature?
• What is the physical state of olive oil at room temperature?
• What are some examples of heterogeneous mixtures?
• Is the air we breathe an homogeneous mixture?
• How can mixtures differ?
• Are all mixtures solutions?
• Why does oil not mix with water?
• When you shake sugar and sand together in a test tube, what do you form?
• What is the difference between heterogeneous and homogeneous mixtures? Chemical and physical changes? What is conservation of mass?
• Is #O_2# a pure substance or mixture?
• A compound differs from a mixture in that a compound always has what?
• When you shake sugar and sand together a test in tube, what do you form?
• What is an example of an heterogeneous mixture?
• How are mixtures defined?
• Is rainwater a pure substance or a mixture?
• Is distilled water a mixture or a pure substance?
• Question #7794f
• You add 500 mL of water at 10°C to 100 mL of water at 70°C. What is the most likely final temperature of the mixture?
• If you mix salt into pure water what is this mixture considered?
• Would sweet tea be an example of a mixture or a compound?
• What volume (mL) of a concentrated solution of sodium hydroxide (6.00 M) must be diluted to 200.0 mL to make a 0.880 M solution of sodum hydroxide?
• What is made of two or more different substances?
• What is salad dressing an example of?
• What type of mixture is trail mix?
• What is air a mixture of?
• A metal alloy weighing 11 kg and containing 2% platinum is melted and mixed with 6 kg of a different alloy which contains 36% platinum. What percent of the resulting alloy is platinum?
• Question #7ab78
• What are the differences between substances and mixtures?
• What will happen if we mix egg yolk and vinegar and oil?
• How much of an alloy that is 30% copper should be mixed with 600 ounces of an alloy that is 80% copper in order to get an alloy that is 40% copper?
• Question #fe94b
• Question #961f0
• Air contains many substances, including nitrogen, carbon dioxide, and water vapor. What is air an example of?
• How do solutions differ from heterogeneous mixtures? Other classes of matter?
• What is a combination of substances in which each substance retains its own properties?
• If a mixture looks smooth and the same throughout, what is it most likely?
• What is the difference between a homogenous and heterogeneous mixture?
• Question #89f1f
• What are examples of homogeneous and heterogeneous mixtures?
• What is the difference between white sand and sugar?
• What does the word mixture mean to a scientist?
• What are differences and similarities between a pure substance and a homogeneous mixture?
• Are scrambled eggs a pure substance or a mixture?
• Why does acetic acid mix with water?
• What is mud, and how could we separate water from it?
• What is the difference between a heterogeneous and homogeneous mixture?
• If a drop of ink is placed into a glass of water, the ink molecules will spread evenly throughout the water. Why does this happen?
• What is 2 substances put together but do not chemically combined?
• What is the result of mixing the two substances shown here together?
• What is the main difference between a heterogeneous and a homogeneous mixture?
• A spice mixture is 25% thyme. How many grams of thyme must be added to 12 g of the mixture to increase the thyme content to 40%?
• For an experiment, students combined 2.951 liters of colored water, 2.3 liters of oil and 1.24 liters of vinegar in a container. What is the total volume of the mixture?
• Question #609ba
• Question #fb6d4
• Why might a bright yellow solid form when two clear, colorless liquids are mixed?
• Question #2ca99
• What describes the substance of minor percentage, the one being dissolved, in a homogeneous mixture?
• What is a mixture in which one substance dissolves in the other?
• For a homogeneous mixture, (i) what makes it homogeneous, and (ii) in what phase, solid, liquid, gas, are the components?
• What is an example of a homogeneous mixture?
• Question #8f689
• Water and oil are placed in the same vessel and stirred. What is the reason that oil and water will not mix?
• What is separating a solid from a liquid by evaporating the liquid called?
• What type of mixture contains intermediate sized particles that are larger than molecules but not so large that the components separate?
• How many phases are in a homogeneous mixture?
• How do you differentiate between pure substances and mixtures?
• Question #d969d
• What are some examples of when a mixture can always be a solution?
• Milk is a heterogeneous mixture that contains different types of particles in different phases. Due to the sizes of the particles in milk and the way they are dispersed, the particles do not easily settle out. What can milk be best described as?
• What type of mixture scatters light and cannot be filtered easily?
• Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide. How would you best describe these three components of air?
• What is the amount of a substance in a given quantity of a mixture, solution, or ore?
• What is a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase?
• Is table salt a mixture?
• How know that water is not simply a mixture of hydrogen and oxygen?
• What are the main characteristic of a heterogeneous mixture?
• Question #bd44f
• How much pure acid should be mixed with 2 gallons of a 50% acid solution in order to get an 80% acid solution?
• Is cranberry juice a mixture, solution, colloid or suspension?
• What is a mixture in science?
• What is the mass percent of sucrose in a solution obtained by mixing 225.0 g of an aqueous solution that is 6.25% sucrose by mass with 135.0 g of an aqueous solution that is 8.20% sucrose by mass?
• What is a mixture that appears uniform throughout and whose particles cannot easily be separated?
• How might you separate a mixture of iron filings and salt?
• Is air a mixture, compound, or element?
• What is a type of suspension that does not settle out under normal conditions?
• Question #8402a
• Question #c0213
• What is an example of a colloid?
• There are two types of mixtures: Heterogeneous and Homogeneous. What is the difference between a heterogeneous mixture and a homogeneous mixture?
• Mixture A was made by mixing different components together, but it appears to have one phase. What term best categorizes mixture A?
• A solid is stirred into a liquid and dissolves. What type of mixture forms?
• Which is a characteristic of a homogeneous mixture that is a liquid?
• In an oil spill, why doesn't the oil mix with the sea water?
• Question #6e276
• Question #7391b
• Question #252b1
• Which is the correct term for compounds that do not mix with water?
• When you mix copper and tin, you make bronze. No chemical reaction occurs. What is bronze?
• Is sodium chloride a mixture?
• What kind of mixture is of potassium dichromate and water?
• Question #5e9ed
• Is isopropyl alcohol a pure substance?
• Is ketchup a heterogeneous or homogeneous mixture?