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Matter Deck 1 > Deck 2 > Flashcards

Deck 2 Flashcards

1
Q

What is an element?

A

A substance that cannot be broken down into simpler substances by ordinary mean

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2
Q

What is a compound?

A

A substance that is formed when 2 or more elements combine chemically to make a new substance

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3
Q

What is a mixture?

A

2 or more substances combine but do not chemically combine to form a different substance.

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4
Q

If a new element were discovered and named newmaterialium, would you expect it to be a metal or a nonmetal?

A

A metal (ium=metal)

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5
Q

Is salt an element, a compound or a mixture?

A

A compound

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6
Q

Is a soft drink an element, a compound, or a mixture?

A

A mixture

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7
Q

What is another name of an element?

A

An atom

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8
Q

What is another name of a compound?

A

Molecules

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9
Q

Do compounds behave the same way as the atoms that they are made from?

A

No because they have different atoms which have different properties

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10
Q

The symbol for carbon dioxide is CO2. What atoms combine to form this molecule?

A

1 carbon and 2 oxygen- look for subscripts to tell how many atoms there are

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11
Q

The air consists of nitrogen and oxygen molecules. Is air a compound? Why or why not?

A

No because there are oxygen and nitrogen mixed in the air but not by any chemical reaction- kept original properties.

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12
Q

What is a mineral?

A

Compounds that make up the earth’s crust.

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13
Q

What is a native mineral?

A

Minerals that are comprised of just a single element.

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14
Q

Types of minerals

A

Silicates, halides, and oxides

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15
Q

What 2 kinds of atoms combine to form water?

A

Hydrogen and oxygen

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16
Q

Why is water called a universal solvent?

A

Because it dissolves almost anything it touches

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17
Q

What is unique about the water molecule that makes it able to dissolve so may substances?

A

The 105 degree angle causes positive or negative charge to distribute unevenly.

18
Q

What would happen to your body if oxygen could not be dissolved in water?

A

Your organs wouldn’t have oxygen

19
Q

Is water truly a universal solvent?

A

No because it cannot dissolve oil or fat

20
Q

Why is it important for mothers with nursing babies to drink lots of water?

A

Because water is needed to make milk

21
Q

What are two differences between a compound and a mixture?

A
  1. mixtures don’t make new substances while compounds create new substances.
  2. Mixtures keep their own properties while compounds don’t
22
Q

What is a homogeneous mixture?

A

A mixture when the substances are distributed evenly

23
Q

What is a heterogeneous mixture?

A

A mixture when the substances are distributed unevenly

24
Q

Name 3 common mixtures

A

Air, milk, orange juice, granite

25
Q

If a soft metal is combined with a gas to form a hard solid that doesn’t look or act like either of the original substances, is the resulting substance a mixture or a compound?

A

Compound because it’s a new substance with different properties

26
Q

How might you separate the salt from the sand and water in a sample of seawater?

A

Filter it or boil so that one dissolves

27
Q

What is likely the most important element on Earth?

A

oxygen

28
Q

What is likely the most important compound on Earth?

A

water

29
Q

What is likely the most important mixture on Earth?

A

air

30
Q

What are the main components of air?

A

nitrogen and oxygen

31
Q

Why is nitrogen necessary in the air?

A

because it is used to delude the oxygen (It protects you from being destroyed from the sun)

32
Q

Why is oxygen necessary in air?

A

Because it is needed for combustion

33
Q

How does the composition of air show God’s provision for life?

A

God created air so that we can breathe

34
Q

Is milk and element, compound, or a mixure?

A

Mixture

35
Q

What is pasteurization, and why is it done to milk?

A

The process of heating milk to kill bacteria

36
Q

What is homogenization, and why is it done it milk?

A

It breaks up fat into tiny bundles so they stay suspended

37
Q

What is foam?

A

Liquid with air trapped inside it

38
Q

Why must cream be churned in order to make butter?

A

Because the air needs to escape

39
Q

Why does whipped cream begin to “weep”?

A

It caused clumping

40
Q

Explain why whip cream eventually melts back to liquid phase.

A

Because the air escapes from the cream

41
Q

How is milk turned into cheese?

A

An acid is added to the milk to begin curdling it then it is drained and added into molds and flavored.

42
Q

What instrument is used to separate blood cells from plasma?

A

the centrifuge

Matter Deck 1 (3 decks)

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