Question

b. What are its units? Is Density, extensive or intensive? C. 23. (True/ False) a) Physical Properties include color, melting point, solubility, and physical state at a specified temperature. (True/ False) b) Density= mass/weight. (True/ False) c) Extensive properties, such as mass and volume, depend on the size of the matter sample. (True/False) d) Density is not one of the physical properties of matter. (True/ False) 24. A weather balloon is inflated to a volume of 2.2 x 10 L with 37.4g of helium. What is the density of helium in grams per liter? 25. Balance the following equations. N O Но NH&NO O2 b) N2O4 + N2OS a) CaCla+ H20 + CO c) HCI+ CaCO3

Answer 1

23.

a) Any property which describes the physical system known as physical property, like density, color, melting point, boiling point, solubility etc. TRUE

b) Density = mass/volume FALSE

c) Extensive properties depend on amount of matter and that inturn depend on size of sample, so extensive property depend on size. TRUE

d) Density is the most important physical property because it defines the physical state, mass of unit volume of a substance. FALSE

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