CHEM 1010 EXAM 1 REVIEW EXAM
QUESTIONS & ELABORATED
COMPLETE PASSED ANSWERS 100%
Which of the following is true about the scientific process? - Correct Answer ✔✔
Science is the process of gathering knowledge about the natural world.
After testing and refining many ideas, scientists often develop a comprehensive model
that explains why things behave as they do. This type of model is best referred to as
a(n): - Correct Answer ✔✔ theory
Scientific thinking began when: - Correct Answer ✔✔ people became skeptical of their
explanations and turned to experimentation
Which of the following is the most correct statement regarding the relationship of
science and technology? - Correct Answer ✔✔ New technologies tend to arise from
scientific discoveries.
____ is often referred to as the "central science" because it connects with every other
field of science. - Correct Answer ✔✔ chemistry
Which of the following would NOT be described correctly as matter? - Correct Answer
✔✔ light
Which of the following is NOT an example of applied research? - Correct Answer ✔✔ A
survey of the number and types of aquatic organisms in a lake.
Which term would best describe an atom? - Correct Answer ✔✔ submicroscopic
Which of the following are volume measurements? Select all that apply, this is a
multiple response question - Correct Answer ✔✔ cubic centimeters (cm3)
milliliters (mL)
liters (L)
A sample of metal has a mass of 0.0793 grams. What is this mass in milligrams? -
Correct Answer ✔✔ 79.3 mg
How many nanoseconds are in 125 microseconds (μs)? - Correct Answer ✔✔ 1.25 x
105 ns
Which of the following are tenets of Dalton's atomic theory? Select all that apply, this is
a multiple response question. Note: DO NOT just mark all statements that are TRUE,
, select only the tenets that are a part of Dalton's atomic theory. - Correct Answer ✔✔ All
elements are composed of extremely small particles called atoms
In a chemical reaction, atoms are rearranged but not created nor destroyed.
Who was the first scientist to propose the idea of the atom? - Correct Answer ✔✔
Democritus
Can an object have mass without having weight?
Can an object have weight without having mass? - Correct Answer ✔✔ Yes
No
If you had 50.0 grams of water (density = 1.00 g/mL) and 50.0 grams of ethanol (0.789
g/mL), which sample would occupy the greatest volume and why? - Correct Answer ✔✔
Ethanol would occupy the greater volume because it is less dense.
What is the volume of an object that has a mass of 40.0 grams and a density of 1.80
g/mL? - Correct Answer ✔✔ 22.2 mL
Plants use the radiant energy of sunlight to convert carbon dioxide and water into
glucose. The type of energy stored in the bonds between the atoms in the glucose
molecule would be an example of what type of energy? - Correct Answer ✔✔ chemical
potential energy
In the United States, food labels report the energy content of a food in units of Calories,
where 1 Calorie = 1000 calories. If a candy bar contains 215 Calories (note the capital
"C"), how many Joules of energy does this candy bar contain? - Correct Answer ✔✔
9.00 x 105 Joules
Which of the temperatures below would be the coldest? - Correct Answer ✔✔ 0 K
( colder than C, F)
Which of the following best describes a gas? - Correct Answer ✔✔ The molecules are
moving quickly and are spaced widely apart.
What type of phase change does the following figure best describe?
Condensed to the lower 1/3 to speadout all over - Correct Answer ✔✔ evaporation
A perfectly elastic balloon (no change in pressure) with a volume of 34.0 L is heated
from 298 K to 315 K. What is the new volume of the balloon? - Correct Answer ✔✔ 35.9
L
What would be the effect on an enclosed volume of gas if we were to double the
pressure while keeping the temperature constant? - Correct Answer ✔✔ The gas
volume would be cut in half
QUESTIONS & ELABORATED
COMPLETE PASSED ANSWERS 100%
Which of the following is true about the scientific process? - Correct Answer ✔✔
Science is the process of gathering knowledge about the natural world.
After testing and refining many ideas, scientists often develop a comprehensive model
that explains why things behave as they do. This type of model is best referred to as
a(n): - Correct Answer ✔✔ theory
Scientific thinking began when: - Correct Answer ✔✔ people became skeptical of their
explanations and turned to experimentation
Which of the following is the most correct statement regarding the relationship of
science and technology? - Correct Answer ✔✔ New technologies tend to arise from
scientific discoveries.
____ is often referred to as the "central science" because it connects with every other
field of science. - Correct Answer ✔✔ chemistry
Which of the following would NOT be described correctly as matter? - Correct Answer
✔✔ light
Which of the following is NOT an example of applied research? - Correct Answer ✔✔ A
survey of the number and types of aquatic organisms in a lake.
Which term would best describe an atom? - Correct Answer ✔✔ submicroscopic
Which of the following are volume measurements? Select all that apply, this is a
multiple response question - Correct Answer ✔✔ cubic centimeters (cm3)
milliliters (mL)
liters (L)
A sample of metal has a mass of 0.0793 grams. What is this mass in milligrams? -
Correct Answer ✔✔ 79.3 mg
How many nanoseconds are in 125 microseconds (μs)? - Correct Answer ✔✔ 1.25 x
105 ns
Which of the following are tenets of Dalton's atomic theory? Select all that apply, this is
a multiple response question. Note: DO NOT just mark all statements that are TRUE,
, select only the tenets that are a part of Dalton's atomic theory. - Correct Answer ✔✔ All
elements are composed of extremely small particles called atoms
In a chemical reaction, atoms are rearranged but not created nor destroyed.
Who was the first scientist to propose the idea of the atom? - Correct Answer ✔✔
Democritus
Can an object have mass without having weight?
Can an object have weight without having mass? - Correct Answer ✔✔ Yes
No
If you had 50.0 grams of water (density = 1.00 g/mL) and 50.0 grams of ethanol (0.789
g/mL), which sample would occupy the greatest volume and why? - Correct Answer ✔✔
Ethanol would occupy the greater volume because it is less dense.
What is the volume of an object that has a mass of 40.0 grams and a density of 1.80
g/mL? - Correct Answer ✔✔ 22.2 mL
Plants use the radiant energy of sunlight to convert carbon dioxide and water into
glucose. The type of energy stored in the bonds between the atoms in the glucose
molecule would be an example of what type of energy? - Correct Answer ✔✔ chemical
potential energy
In the United States, food labels report the energy content of a food in units of Calories,
where 1 Calorie = 1000 calories. If a candy bar contains 215 Calories (note the capital
"C"), how many Joules of energy does this candy bar contain? - Correct Answer ✔✔
9.00 x 105 Joules
Which of the temperatures below would be the coldest? - Correct Answer ✔✔ 0 K
( colder than C, F)
Which of the following best describes a gas? - Correct Answer ✔✔ The molecules are
moving quickly and are spaced widely apart.
What type of phase change does the following figure best describe?
Condensed to the lower 1/3 to speadout all over - Correct Answer ✔✔ evaporation
A perfectly elastic balloon (no change in pressure) with a volume of 34.0 L is heated
from 298 K to 315 K. What is the new volume of the balloon? - Correct Answer ✔✔ 35.9
L
What would be the effect on an enclosed volume of gas if we were to double the
pressure while keeping the temperature constant? - Correct Answer ✔✔ The gas
volume would be cut in half
