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Chemistry > Unit 3 review > Flashcards

Unit 3 review Flashcards

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1
Q

how can you tell if its a Synthesis reaction?

A

if there is one product Ex. Na + Cl = NaCl

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2
Q

how can you tell if its a Decomposition Reaction?

A

There is one reactant Ex. H2 = CO2 + H2O

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3
Q

how can you tell if its a Single Replacement reaction?

A

Single metal + Compound Ex. Cu + AgNO3 = Ag + Cu(NO3)2

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4
Q

how can you tell if its a Double Replacement reaction?

A

2 compounds on both sides Ex. KI + Pb(NO3)2 = K

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5
Q

how can you tell if its a Combostion Reaction?

A

The products are ALWAYS CO2 + H2O

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6
Q

What does soluble mean?

A

Will dissolve in water

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7
Q

what do soluble compounds form?

A

An Aqueous solution (aq)

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8
Q

what is Insoluble?

A

will NOT dissolve in water

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9
Q

what do Insoluble compounds form?

A

Solid Products; Percipitates (s)

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10
Q

Define precipitate

A

insoluble substances are deposited as a solid from a solution

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11
Q

Define Aqueous

A

a compound that dissolves in water

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12
Q

what does (aq) mean?

A

aqueous

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13
Q

what does (s) mean

A

solid products; percipitates

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14
Q

how do you find Grams To moles?

A

take the number of grams divided by the molar mass of the element

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15
Q

how do go from moles to grams?

A

take the number of moles x the molar mass of the element

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16
Q

how do you go from moles to atoms?

A

take the number of moles x 6.02x10^23

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17
Q

how do go from atoms to moles?

A

the number of atoms divided by 6.02x10^23

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18
Q

Atoms can be _____, ______. _____, or ____

A

Particles, Ions, Molecules, or Formula Units

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19
Q

How do you calculate Percent Composition?

A
  1. Mass (in grams) of the element 2. Mass (in grams) of the compound 3. Divide the mass of the element by the mass of the compound 4. Multiply the answer times 100%
20
Q

What are the properties of a Colvalent bond?

A

-Molecular structure -solid, liquid, & gas -Melting point low; below 300c -non-metals -Poor conductors -Has prefixes

21
Q

What are the properties of an Ionic bond

A

-Crystalline Structure -Solid -High Melting point; above 300c -Metals & Non-metals -Transfer electrons -Good conductor

22
Q

if there is one product Ex. Na + Cl = NaCl

A

how can you tell if its a Synthesis reaction?

23
Q

There is one reactant Ex. H2 = CO2 + H2O

A

how can you tell if its a Decomposition Reaction?

24
Q

Single metal + Compound Ex. Cu + AgNO3 = Ag + Cu(NO3)2

A

how can you tell if its a Single Replacement reaction?

25
Q

2 compounds on both sides Ex. KI + Pb(NO3)2 = K

A

how can you tell if its a Double Replacement reaction?

26
Q

The products are ALWAYS CO2 + H2O

A

how can you tell if its a Combostion Reaction?

27
Q

Will dissolve in water

A

What does soluble mean?

28
Q

An Aqueous solution (aq)

A

what do soluble compounds form?

29
Q

will NOT dissolve in water

A

what is Insoluble?

30
Q

Solid Products; Percipitates (s)

A

what do Insoluble compounds form?

31
Q

insoluble substances are deposited in solid form from a solution

A

Define precipitate

32
Q

a compound that dissolves in water

A

Define Aqueous

33
Q

aqueous

A

what does (aq) mean?

34
Q

solid products; percipitates

A

what does (s) mean

35
Q

take the number of grams divided by the molar mass of the element

A

how do you find Grams To moles?

36
Q

take the number of moles x the molar mass of the element

A

how do go from moles to grams?

37
Q

take the number of moles x 6.02x10^23

A

how do you go from moles to atoms?

38
Q

the number of atoms divided by 6.02x10^23

A

how do go from atoms to moles?

39
Q

Particles, Ions, Molecules, or Formula Units

A

Atoms can be _____, ______. _____, or ____

40
Q
  1. Mass (in grams) of the element 2. Mass (in grams) of the compound 3. Divide the mass of the element by the mass of the compound 4. Multiply the answer times 100%
A

How do you calculate Percent Composition?

41
Q

-Molecular structure -solid, liquid, & gas -Melting point low; below 300c -non-metals -Poor conductors -Has prefixes

A

What are the properties of a Colvalent bond?

42
Q

-Crystalline Structure -Solid -High Melting point; above 300c -Metals & Non-metals -Transfer electrons -Good conductor

A

What are the properties of an Ionic bond

43
Q

Empirical Formula

A

Shows the ratio of elements in a compound

44
Q

how do you do empirical Formula

A
  1. Percent to Mass
  2. Mass to Mole
  3. Divide by Small
  4. Multiply ‘till Whole
45
Q

Molecular Formula

A

shows how many atoms of each are present in a molecule of the compound

Chemistry (6 decks)

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