61 G/CM3ADD QUESTION HEREMULTIPLE CHOICE 0 POINTS MODIFY REMOVEQUEST...

1.61 g/cm

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QuestionWhich of the following is a chemical change?Answer Boiling of water Melting wax Broiling a steak on a grill Condensing water vapor into rainfall Carving a piece of woodWhich of these is an example of a physical property?Answer Corrosiveness of sulfuric acid Toxicity of cyanide Flammability of gasoline Neutralization of stomach acid with an antacid Lead becomes a liquid when heated to 601°CWhich one of these represents a physical change?Answer Water, when heated, forms steam Bleach turns hair yellow Sugar, when heated, becomes brown Milk turns sour Apples, when exposed to air, turn brownWhich one of these represents a chemical change?Answer Boiling water to form steam Turning hair yellow with bleach Melting butter Mixing powdered charcoal and oxygen at room temperature Cutting a bar of sodium metal into pieces with a knifeWhich of the following is an extensive property of oxygen?Answer Boiling point Temperature Average kinetic energy of molecules Density MassWhen the value of something does not depend on the amount of the matter, what is this called?Answer Empirical property Intensive property Inclusive property Extensive property Exclusive propertyWhich of the following is an extensive property?Answer Density Specific Heat PressureThe number 1.050 × 10

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has how many significant figures?Answer 2 3 4 9 13After carrying out the operations below, how many significant figures are appropriate to show in the result? (13.7 + 0.027) ÷ 8.221Answer 1 2 5How many significant figures are in 0.006570?Answer 3 6 7The result of (3.8621 × 1.5630) - 5.98 is properly written asAnswer 0.06 0.056 0.0565 0.05646 0.056462Select the answer with the correct number of decimal places for the following sum: 13.914 cm + 243.1 cm + 12.00460 cm =Answer 269.01860 cm