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Chemistry > Benchmark > Flashcards

Benchmark Flashcards

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0
Q

How many sig digs are in the following number: 8.8000

A

5

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1
Q

How many sig digs are in the following number: 13.74

A

4

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2
Q

How many sig digs are in the following number: 26,001,000

A

5

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3
Q

What are pure substances?

A

Elements and compounds

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4
Q

What are the two types of mixtures?

A

Homogeneous and heterogeneous

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5
Q

What are the two types of compounds?

A

Ionic and molecular

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6
Q

What are three types of elements?

A

Metals, non-metals, and metalloids

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7
Q

Identify the following change as physical or chemical: Iron rusts

A

Chemical

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8
Q

Identify the following change as physical or chemical: Paper burns

A

Chemical

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9
Q

Identify the following change as physical or chemical: Hot iron cools

A

Physical

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10
Q

Identify the following change as physical or chemical: Ice melts

A

Physical

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11
Q

Identify the following change as physical or chemical: Glass breaks

A

Physical

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12
Q

Identify the following change as physical or chemical: Silver tarnishes

A

Chemical

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13
Q

Say whether each is a substance; element or compound or a Mixture; homo or hetero: sodium

A

Substance; element

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14
Q

Say whether each is a substance; element or compound or a Mixture; homo or hetero: carrot cake batter.

A

Mixture; hetero

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15
Q

Say whether each is a substance; element or compound or a Mixture; homo or hetero: Vegetable Soup

A

Mixture; hetero

16
Q

Say whether each is a substance; element or compound or a Mixture; homo or hetero: Calcium

A

Substance; compound

17
Q

Say whether each is a substance; element or compound or a Mixture; homo or hetero: blood

A

Mixture: hetero

18
Q

Homogeneous or heterogeneous?

WATER

A

Homo

19
Q

Homogeneous or heterogeneous?

LUCKY CHARMS

A

Hetero

20
Q

Homogeneous or heterogeneous?

DIRT

A

Hetero

21
Q

Homogeneous or heterogeneous?

GOLD

A

Homo

22
Q

Element, compound or mixture?

SILVER

A

Element

23
Q

Element, compound or mixture?

GLUCOSE

A

Compound

24
Q

Element, compound or mixture?

SEAWATER WITH DRIFT WOOD AND SEAWEED

A

Mixture

25
Q

Element, compound or mixture?

A BIG MAC

A

Mixture

26
Q

What regions are an atom divided into?

A

Nucleus and electron cloud

27
Q

Where are the protons located?

A

Nucleus

28
Q

Where are electrons located?

A

Electron cloud

29
Q

Where are neutrons located?

A

In the nucleus

30
Q

Atomic number Z represents:

A

Number of protons

31
Q

Mass number A represents:

A

The number of protons plus neutrons

32
Q

If an atom loses or gains an electron it becomes an:

A

Ion

Chemistry (2 decks)

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