Chemistry: Balancing equations + Types of reaction Flashcards
Objective 1 + 2 (56 cards)
1
Q
__CaO + __H₂O –> __Ca(OH)₂
A
balanced
2
Q
__Na + __F₂ –> __NaF
A
2,1,2
3
Q
__K + __I₂ –> __KI
A
2,1,2
4
Q
__MgO + __SO₃ –> __MgSO₄
A
balanced
5
Q
__C + __O₂ –> __CO₂
A
balanced
6
Q
__Al₂(SO₄)₃ + __Ca(OH)₂ –> __Al(OH)₃ + __CaSO₄
A
1, 3, 2, 3
7
Q
__Na + __MgF₂ –> __NaF + __Mg
A
2, 1, 2, 1
8
Q
__BaCl₂ + __Na₂SO₄ –> __NaCl + __BaSO₄
A
1, 1, 2, 1
9
Q
__LiCl + __Mg(NO₃)₂ –> __LiNO₃ + __MgCl₂
A
2, 1, 2, 1
10
Q
__Al + __Cu(NO₃)₂ –> __Cu + __Al(NO₃)₃
A
2, 3, 3, 2
11
Q
__Mg + __Cl₂ –> __MgCl₂
A
balanced
12
Q
__CO + __O₂ –> __CO₂
A
2,1,2
13
Q
__Cu + __HCl –> __CuCl₂ + __H₂
A
1, 2, 1, 1
14
Q
__Mg + __O₂ –> __MgO
A
2,1,2
15
Q
__Sn + __HF –> __SnF₂ + __H₂
A
1, 2, 1, 1
16
Q
__Mg + __HCl –> __MgCl₂ + __H₂
A
1, 2, 1, 1
17
Q
__C + __O₂ –> __CO₂
A
balanced
18
Q
__Fe +__O₂ –> __Fe₂O₃
A
4,3,2
19
Q
__CS₂ + __O₂ –> __CO₂ + __SO₂
A
1, 3, 1, 2
20
Q
__MgS + __O₂ –> __MgO + __SO₂
A
2, 3, 2, 2
21
Q
__NaOH + __CO₂ –> __Na₂CO₃ + __H₂O
A
2, 1, 1, 1
22
Q
__Mg + __HF –> __MgF₂ + __H₂
A
1, 2, 1, 1
23
Q
__N₂ + __O₂ –> __NO
A
1,1,2
24
Q
__H₂ + __O₂ –>__H₂O
A
2,1,2
25
__PCl₃ + __Cl₂ --> __PCl₅
balanced
26
__Al + __Cl₂ --> __AlCl₃
2,3,2
27
__Mg + __AlCl₃ --> __MgCl₂ +__Al
3, 2, 3, 2
28
__SO₂ + __O₂ --> __SO₃
2,1,2
29
__K + __H₂O --> __KOH + __H₂
2, 2, 2, 1
30
__Cu +__Cl₂ --> __CuCl₂
balanced
31
__Al + __O₂ --> __Al₂O₃
4,3,2
32
precipitate
Solid compound produced from 2 liquids during a chemical reaction. Sign of a chemical reaction.
33
signs of a chemical reaction
change in temperature, formation of bubbles, precipitate forms, color change, change in smell, difficult to reverse
34
subscript
Number written after and BELOW an element in a chemical formula telling you how many of the preceding element are needed for that compound or molecule.
35
chemical equation
Written representation of a chemical reaction/chemical change; shows all the reactants and products. Always in the form of: Reactants arrow Products.
36
chemical reaction
the process by which one or more substances change to produce one or more different substances
37
reactants
A chemical substance that is present at the start of a chemical reaction.-things that react together (on the left side of the equation)
38
products
A chemical substance formed as a result of a chemical reaction-things that are produced (on the right side of the equation)
39
coefficient
numbers written to balance a chemical equation in front of the element or compound
40
Law of Conservation of Mass
the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
41
Yields
Makes, creates, produces; Arrow in chemical equation
42
chemical bond
The force that holds atoms together
43
Which type of chemical reaction occurs in 2KClO3 mc010-1.jpg 2KCl + 3O2?
b. decomposition
44
Consider the partial equation.
Br2 + NaF →
Which best completes the chemical equation?
a. no reaction
45
Which is a characteristic of a decomposition reaction?
b. Substance XYZ breaks down into X, Y, and Z.
46
In which type of chemical reaction do two or more substances combine to form one substance?
a. synthesis
47
A double replacement reaction can be best described as a reaction in which
c. ions are exchanged between two compounds.
48
A chemical reaction in which one element replaces another element in a compound can be categorized as a
c. single displacement reaction.
49
Which type of chemical reaction occurs in Ca + Cl2 → CaCl2?
a. synthesis
50
Which products would form if chlorine gas was bubbled through a solution of sodium bromide?
c. NaCl and Br2
51
Which type of chemical reaction occurs in C6H12 + 9O2 → 6CO2 + 6H2O?
b. combustion
52
The formation of which product(s) will most likely be observed in a combustion reaction?
a. an oxide
53
Propane burns in air to produce carbon dioxide and water. What is this type of chemical reaction called?
b. combustion
54
A chemical reaction has two elements as reactants. Which type of reaction might occur?
a. synthesis
55
Reactivity series
Na > Mg > Al > Mn > Zn > Cr > Fe > Cd > Co > Ni > Sn > Pb > H > Sb > Bi > Cu > Ag
56
A _________ reaction occurs when one compound reacts and is broken down into different elements or simpler compounds.
decomposition
