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science 1 Flashcards

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0
Q

What is the Independent Variable?

A

The Variable that is change or manipulated.

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1
Q

What is Control?

A

Used for comparison (stays the same)

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2
Q

What is the Dependent?

A

Result of what was changed.

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3
Q

When you observe/collect data?

A

Use a data table

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4
Q

What do you do when you analyze Data?

A

Use a graph.

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5
Q

what is Atom?

A

A building block for any and all matter.

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6
Q

what is an atom composed of?

A

Protons,Neutrons, Elctrons

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7
Q

Atomic # is?

A

of protons

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8
Q

what is the atomic Weight?

A

of neutrons

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9
Q

what is Malleable?

A

Bendable, can be shaped.

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10
Q

what is ducktile?

A

Being able to be stretched into a thin wire.

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11
Q

Noble Gases are not?

A

Reaction they are stable

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12
Q

how many valence electrons can level one hold?

A

2

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13
Q

how many valence electrons do energy level 2 hold?

A

8 valence electrons

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14
Q

how many valence electrons do energy level 3 hold?

A

8 valence electrons

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15
Q

what are Valence electrons?

A

electrons in the last energy level

16
Q

how do ions form?

A

when an atom loses a negative charge and becomes a positive charge or when an atom gains a negative charge and becomes a negative

17
Q

how do you name ionic compounds?

A

the name of the positive ion comes first followed by the name of the negative

18
Q

how is ionic crystal formed?

A

when you have equal #’s of positive and negative charge.

19
Q

do Ionic bonds have electrical conductivity?

A

yes, because they are ducktile

20
Q

what is covalent bond?

A

when two atoms share electrons

21
Q

What is a double bond?

A

two atoms share two pairs of electrons.

22
Q

what is a polar bond?

A

a covalent bond in which electrons are shared unequally

23
Q

what is a non polar bond?

A

covalent bond in which electrons are shared equally

24
Q

due to cohesion h2o does what?

A

starts sticking to other H2O

25
Q

what is adhesion?

A

H2O sticking to other surfaces

26
Q

charges cause?

A

H2O to create polarity allowing H2O to dissolve

27
Q

Hydrogen bonds are?

A

weak

28
Q

surface tension is?

A

h2o sticking to each other

29
Q

what is polarity?

A

electrons shared unequally.

30
Q

how is surface tension formed?

A

when h2o sticks together

31
Q

what does H+ mean?

A

Hydrogen Ion

32
Q

what does OH stand for?

A

Hydroxide

33
Q

What is a Ph scale?

A

scale of how acidic something is to not acidic.

34
Q

what is PH?

A

measure of hydrogen bonds

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