CHEM133- Quiz 1- AMU complete Actual
Exam study set with Questions and
correct/verified Answers
Bromine is a red liquid at 25°C. Its density is 3.12 g/cm3. What is the volume of 28.1 g of liquid bromine?
- ANSWER-9.01 cm³
Suppose a house has a floor area of 2,250 square feet. What is this area in units of square centimeters? -
ANSWER-2.09 x 10⁶cm²
The state of matter for an object that has both definite volume and definite shape is - ANSWER-Solid
state
Consider the numbers 23.68 and 4.12. The sum of these numbers has ____ significant figures, and the
product of these numbers has ____ significant figures. - ANSWER-3,4
The boiling of water is a - ANSWER-physical change because the gaseous water is chemically the same as
the liquid
In the spring of 2008, gasoline cost £1.029 per Liter in London. On the same day, the exchange rate was
$1 = £0.497. What was the price of London gasoline in dollars ($) per gallon? (1 gal = 3.7854 L) -
ANSWER-$7.84/gal
If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 195-pound
man? - ANSWER-1.2 kg Ca
How many significant figures are there in the ANSWER to the following problem? (3.335 × 6.500) + 0.940
= ? - ANSWER-four
A piece of metal ore weighs 9.00 g. When a student places it into a graduated cylinder containing water,
the liquid level rises from 21.25 mL to 26.47 mL. What is the density of the ore? - ANSWER-1.72 g/mL
A substance that can't be chemically broken down into simpler substances is considered to be -
ANSWER-an element
Define thermal energy. - ANSWER-Energy associated with the temperature of an object
Choose the pure substance from the list below. - ANSWER-sugar
Which of the following are incorrectly paired? - ANSWER-O, halogen
A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium is
contained in 45.0 g of calcium fluoride? - ANSWER-23.1 g
What are the names of the ions Ba2+, Sn2+, and Se2-? - ANSWER-barium, tin (II), and selenide
Alpha particles beamed at thin metal foil may - ANSWER-a.) pass directly through without changing
direction
b.) be slightly diverted by attraction to electrons
Exam study set with Questions and
correct/verified Answers
Bromine is a red liquid at 25°C. Its density is 3.12 g/cm3. What is the volume of 28.1 g of liquid bromine?
- ANSWER-9.01 cm³
Suppose a house has a floor area of 2,250 square feet. What is this area in units of square centimeters? -
ANSWER-2.09 x 10⁶cm²
The state of matter for an object that has both definite volume and definite shape is - ANSWER-Solid
state
Consider the numbers 23.68 and 4.12. The sum of these numbers has ____ significant figures, and the
product of these numbers has ____ significant figures. - ANSWER-3,4
The boiling of water is a - ANSWER-physical change because the gaseous water is chemically the same as
the liquid
In the spring of 2008, gasoline cost £1.029 per Liter in London. On the same day, the exchange rate was
$1 = £0.497. What was the price of London gasoline in dollars ($) per gallon? (1 gal = 3.7854 L) -
ANSWER-$7.84/gal
If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 195-pound
man? - ANSWER-1.2 kg Ca
How many significant figures are there in the ANSWER to the following problem? (3.335 × 6.500) + 0.940
= ? - ANSWER-four
A piece of metal ore weighs 9.00 g. When a student places it into a graduated cylinder containing water,
the liquid level rises from 21.25 mL to 26.47 mL. What is the density of the ore? - ANSWER-1.72 g/mL
A substance that can't be chemically broken down into simpler substances is considered to be -
ANSWER-an element
Define thermal energy. - ANSWER-Energy associated with the temperature of an object
Choose the pure substance from the list below. - ANSWER-sugar
Which of the following are incorrectly paired? - ANSWER-O, halogen
A sample of pure calcium fluoride with a mass of 15.0 g contains 7.70 g of calcium. How much calcium is
contained in 45.0 g of calcium fluoride? - ANSWER-23.1 g
What are the names of the ions Ba2+, Sn2+, and Se2-? - ANSWER-barium, tin (II), and selenide
Alpha particles beamed at thin metal foil may - ANSWER-a.) pass directly through without changing
direction
b.) be slightly diverted by attraction to electrons
