The ratio of a given amount at mass to the space it occupies is called ..? A. le

Question

The ratio of a given amount at mass to the space it occupies is called ..? A. length B. mass C. density D. volume E. heat How many significant figures are 3.408 times 10^4 m? A. 3 B. 4 C. 5 D. 7 E. 8 One quart of liquid is equivalent to 0.946 liters. How many liters equal 10.0 U.S. gallons of gasoline? A. 9.46 L B. 40.0 L C. 37.8 L D. 25.6 L E. 10.5 L An unknown sample cannot be separated into two or more substances by any physical means. It must be...? A. a compound B. an element C. either an element or a compound D. a homogeneous mixture E. a heterogeneous mixture A sample of metal has a mass of 27.24 grams and a volume of 2.2 mL. Which of the following is the correct value of this metal's mass density (in g mL^-1)? A. 12.382 B. 0.081 C. 12.38 D. 0.0878 E. 12

Explanation / Answer

Solution:

1. Answer is C Density,

Density = mass of substance/Volume occupied

Unit = Kg/m3

2. Answer is A 3

Significant figures are nothing but number after decimals

3. Answer is C 37.8 liter

1 US gallon = 3.78 liter

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