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Chemistry > Chapter 8 > Flashcards

Chapter 8 Flashcards

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0
Q

What is the small whole number that belongs to an element in a chemical formula

A

Subscript

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1
Q

A solid produced by a chemical reaction in solution that separates from the solution

A

Precipitate

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2
Q

To balance a chemical equation, it may be necessary to adjust the

A

Coefficients

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3
Q

In an equation, the symbol for a substance in water solution is followed by

A

(Aq)

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4
Q

The equation AX->A+X is the general equation for a

A

Decomposition

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5
Q

The equation AX+BY->AY+BX is the general equation for

A

Double replacement reaction

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6
Q

The equation A+X->AX is the general equation for

A

Single replacement reaction

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7
Q

2Mg+O2->2MgO is a..

A

Synthesis reaction

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8
Q

The reactions Mg+2HCl->H2+MgCl2 is a

A

Single replacement reaction

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9
Q

Pb(NO3)2+2KI->PbI2+2KNO3

A

Double replacement reaction

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10
Q

The reaction CH4+2O2->2H2O+CO2 is a..

A

Combustion reaction

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11
Q

Oxides of active metals such as CaO react with water to produce

A

Metal hydroxides

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12
Q

Some acids, such as carbonic acid, decompose to nonmetal oxides and….

A

Water

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13
Q

When potassium reacts with water (HOH) one product formed is

A

Hydrogen gas

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14
Q

The reaction of calcium oxide (CaO) with water yields

A

Calcium hydroxide

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15
Q

Predict the product of this: MgO+CO2

A

MgCO3

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16
Q

The formulas for the products of the reaction between sodium hydroxide and sulfuric acid are

A

Na2SO4 and H2O

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17
Q

What is the balanced equation when aluminum reacts with copper(II)sulfate

A

2Al+3CuSO4->Al2(SO4)3+3Cu

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18
Q

An element in the activity series can replace any element

A

Below it on the list

19
Q

Predict what happens when lead is added to nitric acid

A

H2 gas is formed

20
Q

Magnesium bromide + chlorine yield

A

Mg(Cl)2 and Br2

21
Q

Always has carbon dioxide and water as products

A

Combustion

22
Q

When is there a no reaction in double replacement

A

When both products are (aq)

23
Q

How much is sulfur by itself

A

S8

24
Q

How much is phosphorus by itself

A

P4

25
Q

Equations that describe the chemicals put into the water and the product molecules

A

Molecular equations

26
Q

Equations that describe the actual ions and molecules in the solutions as well as the molecules of solid, liquid, and gas not dissolved

A

Ionic equation

27
Q

Ions that are both in reactants and products

A

Spectator ions

28
Q

An ionic equation in which the spectator ions are dropped ; what is left over

A

Net ionic equation

29
Q

One product

A

Synthesis

30
Q

Two products

A

Decomposition

31
Q

Alkanes

A

CnH2n+2

32
Q

Alkenes

A

CnH2n

33
Q

Alkynes

A

CnH2n-2

34
Q

1

A

Meth

35
Q

2

A

Eth

36
Q

3

A

Prop

37
Q

4

A

But

38
Q

5

A

Pent

39
Q

6

A

Hex

40
Q

7

A

Hept

41
Q

8

A

Oct

42
Q

9

A

Non

43
Q

10

A

Dec

44
Q

Regular equations for combustion

A

Gasoline + oxygen-> carbon dioxide + water

45
Q

Decane becomes what

A

C10H22

Chemistry (11 decks)

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