StraighterLine Exam 1 (Chpt. 1-3)
Questions and Answers
Which of the following describes an observational set tentatively?
Law; Hypothesis (b)
c. Conceptualization
d. Events
e. Forecast - ANSWER b. Conjecture
Which of the following cannot be chemically divided into simpler substances?
a. Component
a. Aqueous suspension
c. Composite
d. A homogeneous blend
e. Mixed heterogeneous substance - ANSWER a. Component
Which property on the list below is extensive?
a. Density
b. The ambient temperature
c. Mass
d. Particular Heat
e. Mass - ANSWER C. Pressure
, What is a chemical change, out of the following?
1. Water that is boiling
b. Wax melting
b. Grilling a steak to perfection
d. Water vapor condensing into precipitation
e. Carving a wooden object - ANSWER c. Stake broiling on a grill
Out of them, which one reflects a change in the body?
a. Steam is produced when water is heated.
b. Hair gets yellow from bleach.
c. Heat causes sugar to turn brown.
d. Sour milk.
e. Apples become brown in the presence of air. - ANSWER a. Steam is produced
when water is heated.
What is the number of significant figures in the sum 8.5201 + 1.93? - ANSWER 4
At this point, Anchorage, Alaska, is about 2400 miles south of Los Angeles. It is
steadily sliding northward along the San Andreas fault. How far will Los Angeles
have to go each month in millimeters if it wants to get to Anchorage in 76 million
years? One mile is equal to sixteen09 meters.
2.0 × 10-10 mm/mo.
Questions and Answers
Which of the following describes an observational set tentatively?
Law; Hypothesis (b)
c. Conceptualization
d. Events
e. Forecast - ANSWER b. Conjecture
Which of the following cannot be chemically divided into simpler substances?
a. Component
a. Aqueous suspension
c. Composite
d. A homogeneous blend
e. Mixed heterogeneous substance - ANSWER a. Component
Which property on the list below is extensive?
a. Density
b. The ambient temperature
c. Mass
d. Particular Heat
e. Mass - ANSWER C. Pressure
, What is a chemical change, out of the following?
1. Water that is boiling
b. Wax melting
b. Grilling a steak to perfection
d. Water vapor condensing into precipitation
e. Carving a wooden object - ANSWER c. Stake broiling on a grill
Out of them, which one reflects a change in the body?
a. Steam is produced when water is heated.
b. Hair gets yellow from bleach.
c. Heat causes sugar to turn brown.
d. Sour milk.
e. Apples become brown in the presence of air. - ANSWER a. Steam is produced
when water is heated.
What is the number of significant figures in the sum 8.5201 + 1.93? - ANSWER 4
At this point, Anchorage, Alaska, is about 2400 miles south of Los Angeles. It is
steadily sliding northward along the San Andreas fault. How far will Los Angeles
have to go each month in millimeters if it wants to get to Anchorage in 76 million
years? One mile is equal to sixteen09 meters.
2.0 × 10-10 mm/mo.
