CHM151 Rio Salado Midterm Exam
Questions and Answers 100% Solved
Chemistry is the study of? - ✔✔Matter
Is the statement "Falling barometric pressure preceded the onset of bad
weather." a hypothesis, theory, or a law? - ✔✔Law
Is the statement "All life on Earth has evolved from a common, primitive
organism through the process of natural selection." a hypothesis, theory, or
a law? - ✔✔theory
Is the statement "My truck's gas mileage has dropped significantly,
probably because it's due for a tune-up." a hypothesis, theory, or a law? -
✔✔hypothesis
The mass of a lead pipe is 14 lb. Is this observation in the microscopic
domain, macroscopic domain, or symbolistic domain? - ✔✔Macroscopic
domain
The mass of a certain chlorine atom is 35 amu. Is this observation in the
microscopic domain, macroscopic domain, or symbolic domain? -
✔✔Microscopic domain
, A bottle with a label that reads Al contains aluminum metal. Is this
observation in the microscopic domain, macroscopic domain, or symbolic
domain? - ✔✔Symbolic domain
According to one theory, the pressure of a gas increases as its volume
decreases because the molecules in the gas have to move a shorter
distance to hit the walls of the container. Does this theory follow a
macroscopic or microscopic description of chemical behavior? -
✔✔Microscopic
Which of the following is a pure substance? - ✔✔Table salt, water, baking
soda
Which of the following is a heterogeneous mixture? - ✔✔oil and vinegar,
salad dressing
A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to
produce 2.0 liters of water vapor. Does oxygen undergo a chemical or
physical change? - ✔✔Chemical Change
Which of the following is an example of a chemical change? - ✔✔Burning
of magnesium
10.0 g of water freezing at 0 °C is an example of an intrinsic or extensive
property? - ✔✔Intrinsic property
Questions and Answers 100% Solved
Chemistry is the study of? - ✔✔Matter
Is the statement "Falling barometric pressure preceded the onset of bad
weather." a hypothesis, theory, or a law? - ✔✔Law
Is the statement "All life on Earth has evolved from a common, primitive
organism through the process of natural selection." a hypothesis, theory, or
a law? - ✔✔theory
Is the statement "My truck's gas mileage has dropped significantly,
probably because it's due for a tune-up." a hypothesis, theory, or a law? -
✔✔hypothesis
The mass of a lead pipe is 14 lb. Is this observation in the microscopic
domain, macroscopic domain, or symbolistic domain? - ✔✔Macroscopic
domain
The mass of a certain chlorine atom is 35 amu. Is this observation in the
microscopic domain, macroscopic domain, or symbolic domain? -
✔✔Microscopic domain
, A bottle with a label that reads Al contains aluminum metal. Is this
observation in the microscopic domain, macroscopic domain, or symbolic
domain? - ✔✔Symbolic domain
According to one theory, the pressure of a gas increases as its volume
decreases because the molecules in the gas have to move a shorter
distance to hit the walls of the container. Does this theory follow a
macroscopic or microscopic description of chemical behavior? -
✔✔Microscopic
Which of the following is a pure substance? - ✔✔Table salt, water, baking
soda
Which of the following is a heterogeneous mixture? - ✔✔oil and vinegar,
salad dressing
A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to
produce 2.0 liters of water vapor. Does oxygen undergo a chemical or
physical change? - ✔✔Chemical Change
Which of the following is an example of a chemical change? - ✔✔Burning
of magnesium
10.0 g of water freezing at 0 °C is an example of an intrinsic or extensive
property? - ✔✔Intrinsic property
