Concept explainers
(a)
Interpretation:
Chlorine gas has greenish yellow tint is physical or chemical property has to be given.
Concept Introduction:
Physical properties:
Physical properties can be observed or measured without changing the composition of matter. Physical properties are used to observe and describe matter.
Chemical properties:
Chemical properties are only observed during a
(b)
Interpretation:
The density of the water at
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Hydrogen gas is very flammable is a physical or chemical property has to be given.
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
Aluminium is a solid at
Concept Introduction:
Refer to part (a).
(e)
Interpretation:
Water is colorless and odorless is a physical or chemical property has to be given.
Concept Introduction:
Refer to part (a).
(f)
Interpretation:
Lemon juice tastes sour is a physical or chemical property has to be given.
Concept Introduction:
Refer to part (a).
(g)
Interpretation:
Gold does not tarnish is a physical or chemical property has to be given.
Concept Introduction:
Refer to part (a).
(h)
Interpretation:
Copper cannot be decomposed is a physical or chemical property has to be given.
Concept Introduction:
Refer to part (a).
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EBK FOUNDATIONS OF COLLEGE CHEMISTRY
- Decide whether each of the following is a physical property or a chemical property of the substance. a Salt substitute, potassium chloride, dissolves in water. b Seashells, calcium carbonate, fizz when immersed in vinegar. c The gas hydrogen sulfide smells like rotten eggs. d Fine steel wool (Fe) can be burned in air. e Pure water freezes at 0C.arrow_forwardClassify each property as physical or chemical. (a) the tendency of silver to tarnish(b) the shine of chrome(c) the color of gold(d) the flammability of propane gasarrow_forwardDefine physical property and chemical property. Identify each type of property in the following statements:(a) Yellow-green chlorine gas attacks silvery sodium metal to form white crystals of sodium chloride (table salt).(b) A magnet separates a mixture of black iron shavings and white sand.arrow_forward
- Define physical property and chemical property. Identify each type of property in the following statements:(a) Yellow-green chlorine gas attacks silvery sodium metal to form white crystals of sodium chloride (table salt).(b) A magnet separates a mixture of black iron shavings and white sand. When you convert feet to inches, how do you decide which part of the conversion factor should be in the numerator and which in the denominator?arrow_forwardClassify each property as physical or chemical. (a) the tendency for platinum jewelry to scratch easily(b) the ability of sulfuric acid to burn the skin(c) the ability of hydrogen peroxide to bleach hair(d) the density of lead relative to other metalsarrow_forwardWhich of the following statements describe physicalproperties and which describe chemical properties?(a) Iron has a tendency to rust. (b) Rainwater inindustrialized regions tends to be acidic. (c) Hemoglobinmolecules have a red color. (d) When a glass of wateris left out in the sun, the water gradually disappears.(e) Carbon dioxide in air is converted to more complexmolecules by plants during photosynthesis.arrow_forward
- Classify each change as physical or chemical. (a) A balloon filled with hydrogen gas explodes upon contactwith a spark.(b) The liquid propane in a barbecue evaporates away becausesomeone left the valve open.(c) The liquid propane in a barbecue ignites upon contactwith a spark.(d) Copper metal turns green on exposure to air andwater.arrow_forward7. State whether each of the following represents a chemical change or merely a physical change:(a) A few grams of sucrose (table sugar) are placed in a small beaker of deionized water; the sugar crystals “disappear,” and the liquid in the beaker remains clear and colorless.(b) A copper statue, over time, turns green.(c) When a teaspoon of baking soda (sodium bicarbonate) is placed into a few ounces of vinegar (acetic acid), volumes of bubbles (effervescence) are produced.arrow_forwardDefine physical propertyand chemical property.Identify each type of property in the following statements:(a) Yellow-green chlorine gas attacks silvery sodium metal to form white crystals of sodium chloride (table salt).(b) A magnet separates a mixture of black iron shavings and white sandarrow_forward
- You are given a hammer, a battery, a bulb, wires and switch.(a) How could you use them to distinguish between samples of metals and non- metals?(b) Asses the usefulness of these tests in distinguishing between metals and non-metals?arrow_forwardWhich of these changes are physical and which are chemical? Explain.(a) Plants make sugar from carbon dioxide and water.(b) Water vapor in the air forms frost.arrow_forwardDefine physical change and chemical change. State which type of change occurs in each of the following statements: (a) Passing an electric current through molten magnesium chloride yields molten magnesium and gaseous chlorine. (b) The iron in discarded automobiles slowly forms reddish brown, crumbly rust.arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning