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Chemistry
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Chemistry The Central Science
Quiz 1: Introduction: Matter and Measurement
Path 4
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Question 141
Short Answer
Si is the symbol for the element ________.
Question 142
Short Answer
Gases do not have a fixed ________ as they are able to be ________.
Question 143
Multiple Choice
The estimated costs for remodelling the interior of an apartment are: three 1-gallon cans of paint at $15.44 each, two paint brushes at $12.22 each, and $145 for a helper. The total estimated cost with the appropriate significant figures is $________.
Question 144
Short Answer
Mass and volume are often referred to as ________ properties of substances.
Question 145
Multiple Choice
The number with the most significant zeros is ________.
Question 146
Short Answer
1.035 × 10
-4
L = ________ mL
Question 147
Multiple Choice
How many liters of air are in a room that measures 11.0 ft × 12.0 ft and has a 10.0 ft ceiling? 1 in. = 2.54 cm (exactly) ; 1 L = 10
3
cm
3
Question 148
Short Answer
Sn is the symbol for the element ________.
Question 149
Short Answer
The symbol for the element phosphorus is ________.
Question 150
Short Answer
1 milligram = ________ micrograms
Question 151
True/False
A scientific theory is a concise statement or an equation that summarizes a broad variety of observations.
Question 152
Multiple Choice
The density of air under ordinary conditions at 25 °C is 1.19 g/L. How many kilograms of air are in a room that measures 9.0 ft × 11.0 ft and has a 10.0 ft ceiling?
Question 153
Multiple Choice
How many liters of wine can be held in a wine barrel whose capacity is 30.0 gal?
Question 154
Multiple Choice
The quantity ________ m is the same as 4 km.
Question 155
Multiple Choice
Round the following number to four significant figures and express the result in standard exponential notation: 0.00222755
Question 156
Multiple Choice
Which of the following liquids has the greatest density?
Question 157
Multiple Choice
The recommended adult dose of Elixophyllin
, a drug used to treat asthma, is 6.00 mg/kg of body mass. Calculate the dose in milligrams for a 134-lb person.
Question 158
Short Answer
Cu is the symbol for the element ________.
Question 159
Multiple Choice
The width, length, and height of a large, custom-made shipping crate are 1.12 m, 1.25 m, and 0.83 m, respectively. The volume of the box using the correct number of significant figures is ________ m
3
.