Please Help Determine whether each of the materials listed below would be classified as pure substances,homogeneous mixtures, or heterogeneous mixtures.PureHomogeneousHeterogeneousSubstanceSubstanceMixtureMixtureConcreteSeawaterMagnesiumGasolineAirNitrogenIodine crystalsBlue-cheese salad dressing O For each of the substances listed below, determine whether they would exist as a solid, liquid, or gasunder ordinary temperature and pressure.SubstanceSolidLiquidGasOxygenSodium Chloride (table salt)MercuryCarbon DioxideHeliumCopperIsopropyl alcohol (used as rubbing alcohol)Sodium bicarbonate (baking soda)

Pure substance : These are made up of only one kind of particles. Homogeneous mixture : The…

Answered: Pure Homogeneous Heterogeneous…

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter7: Gases, Liquids, And Solids

Section: Chapter Questions

Problem 7.8EP

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he following demonstration takes place in a two-step process: rst, solid calcium carbide (CaC2j)reacts with liquid water to produce acetylene gas (C2H2)and aqueous calcium hydroxide. Second the acetylene gas produced is then ignited with a match, causing the combustion reaction of acetylene with oxygen gas to produce gaseous carbon dioxide and gaseous water. Write the balanced equations for each reaction that is occurring, including all phases. If a 100.0gsample of calcium carbide (CaC2)is initially reacted with 50.0gof water, which reactant is limiting? Now imagine that the final gases produced are collected in a large bulkier and allowed to cool to room temperature. Using the information from part b ( l00.0gof Cec2reacting with 50.0gof H2O), how many liters of carbon dioxide gas were produced in the balloon at a pressure of 1.00atm and 25C?
Draw molecular—level views than show the differences among solids, liquids, and gases.
In terms of the kinetic molecular theory, in what ways are liquids similar to gases? In what ways are liquids different from gases?
In terms of the kinetic molecular theory, in what ways are liquids similar to solids? In what ways are liquids different from solids?
Which is denser at the same temperature and pressure, dry air or air saturated with water vapor? Explain.
Indicate whether each of the following statements about the physical states of matter is true or false. a. The term indefinite shape applies to both liquids and gases. b. Thermal expansion for a gas is generally less than that of the corresponding liquid. c. The compressibility of a liquid is generally greater than that of the corresponding solid. d. The density of a liquid is about the same as that of the corresponding gas.
Helium condenses to a liquid at 4.224 K under atmospheric pressure and remains a liquid down to the absolute zero of temperature. (It is used as a coolant to reach very low temperatures.) The vapor pressure of liquid helium at 2.20 K is 0.05256 atm. Calculate the volume occupied by 1.000 mol helium vapor under these conditions and compare it with the volume of the same amount of helium at standard temperature and pressure.

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Pure Homogeneous Heterogeneous Substance Substance Mixture Mixture Concrete Seawater Magnesium Gasoline Air Nitrogen Iodine crystals Blue-cheese salad dressing