Lesson 1 Flashcards

1
Q

IDENTIFICATION

Chemistry is also called the “________ _______” as it deals with concepts from different fields such as biology, physics, geology, and others.

A

Central Science

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2
Q

IDENTIFICATION

Aneesa, together with her laboratory colleagues, is trying to detect the RNA of COVID-19. Which branch of chemistry is she studying?

A

Biochemistry

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3
Q

IDENTIFICATION

Ella is a forensic scientist. This would mean that she is in charge of analyzing fingerprints and substances in a crime scene. This is under what branch of chemistry?

A

Analytical Chemistry

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4
Q

MULTIPLE CHOICE

In an attempt to understand Penny’s erratic behavior, Sheldon suggests that Penny’s mood swings may be due to her “reproductive cycle” synchronizing with the other women in the building.

What stage of the scientific method is Sheldon in?

a. Test
b. Question
c. Hypothesis
d. Observe

A

c. Hypothesis

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5
Q

MULTIPLE CHOICE

With a hypothesis that drinking liquor may serve as a confidence booster, Penny makes Raj drink alcohol and sees that Raj is finally able to talk to girls.

What stage of the scientific method is Penny in?

a. Test
b. Question
c. Hypothesis
d. Observe

A

a. Test

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6
Q

NaCl (Sodium Chloride) is a pure substance or a mixture?

A

Pure Substance

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7
Q

Are hydrates pure substances or mixtures?

A

Pure Substances

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8
Q

TRUE OR FALSE

Metals are electron donors and they form anions.

A

FALSE.

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9
Q

Ionic Compounds are a combination of?

A

Metal and Nonmetals

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10
Q

MULTIPLE CHOICE

Ara is trying to determine the density of an unknown metal. What is she observing?

a. Chemical Property
b. Physical Property
c. Chemical Change
d. Physical Change

A

b. Physical Property

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11
Q

Ara is trying to determine the density of an unknown metal. What is she observing?

a. Intensive Property
b. Extensive Property
c. Physical change
d. Chemical change

A

a. Intensive Property

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12
Q

Cesca is measuring the height of the cylinder. What is she observing?

a. Intensive Property
b. Physical Property
c. Extensive Property
d. Both b and c

A

d. Both b and c

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13
Q

Vaporization is under what change?

A

Physical Change

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14
Q

The statue of liberty going through oxidation (copper to green) is under what change?

A

Chemical Change

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15
Q

Observing endothermic reactions is under what property?

A

Chemical property

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