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Elements and Physical and Chemical Change Flashcards | StudBud
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Elements and Physical and Chemical Change
Elements and Physical and Chemical Change
47 terms
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Physical and Chemical change Reading a periodic table Chemical reactions
Flashcards
47 cards
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Questions
47
Answers
1
Balance the equation.
1 P4 + 6 H2 = 4 PH3
1 P4 + 3 H2 = 4 PH3
2 P4 + 12 H2 = 8 PH3
1 P4 + 3 H2 = 2 PH3
2
Use the law of conservation of mass to find the missing mass.
180 g
384
64 g
320 g
3
Use the law of conservation of mass to find the missing mass.
18 g
32 g
17 g
2 g
4
Physical or Chemical change: Braiding hair
Physical
Chemical
5
Physical or Chemical change: Combustion of wood
Physical
Chemical
6
Is the 1 C
6
H
12
O
6
(sugar) a reactant or product?
Reactant
Product
7
Are the 6 H
2
O reactants or products?
Product
Reactant
8
Is the following a sign of a physical or chemical change: Sound
Chemical
Physical
9
Physical or Chemical change: Oxidation of Iron (rust)
Physical
Chemical
10
Is the following a sign of a physical or chemical change: Bubbles
Chemical
Physical
11
Use the law of conservation of mass to find the missing mass.
180 g
384 g
320 g
64 g
12
Balance the equation.
2 CO2 = 2 CO + 2 O2
1 CO2 = 2 CO + 1 O2
1 CO2 = 1 CO + 1 O2
2 CO2 = 2 CO + 1 O2
13
Physical or Chemical change: Fireworks
Chemical
Physical
14
Balance the equation.
1 P4 + 3 F2 = 4 PF3
2 P4 + 12 F2 = 8 PF3
1 P4 + 3 F2 = 2 PF3
1 P4 + 6 F2 = 4 PF3
15
Is the following a sign of a physical or chemical change: Light
Chemical
Physical
16
Physical or Chemical change: Explosion
Physical
Chemical
17
Is the following a sign of a physical or chemical change: Color Change
Chemical
Physical
18
Is the following a sign of a physical or chemical change: Odor
Chemical
Physical
19
What is the atomic symbol?
58
2+
28
Ni
20
Physical or Chemical change: Crushed can
Chemical
Physical
21
What is the atomic number?
58
28
Ni
2+
22
What is the atomic mass?
2+
Ni
58
28
23
Balance the equation.
2 CH3OH = 1 CO + 2 H2
1 CH3OH = 1 CO +1 H2
1 CH3OH = 1 CO + 2 H2
2 CH3OH = 2 CO + 2 H2
24
Are the 6 O
2
reactants or products?
Reactant
Product
25
How many protons does nickel have?
26
2
28
30
26
What is the charge on the atom?
2+
28
Ni
58
27
Are the 6 CO
2
reactants or products?
Reactant
Product
28
Physical or Chemical change: Chopping wood
Physical
Chemical
29
Is the following a physical or chemical change: State of matter change (gas liquid solid)
Chemical
Physical
30
Use the law of conservation of mass to find the missing mass.
18 g
32 g
2 g
17 g
31
Physical or Chemical change: Respiration
Physical
Chemical
32
How many electrons does this ion of nickel have?
30
2
28
26
33
Physical or Chemical change: Bubbling Soda
Chemical
Physical
34
Use the law of conservation of mass to find the missing mass.
320 g
384
180 g
64 g
35
Is the following a sign of a physical or chemical change: Heat
Chemical
Physical
36
Use the law of conservation of mass to find the missing mass.
17 g
32 g
2 g
18 g
37
Physical or Chemical change: Combustion of gasoline
Chemical
Physical
38
Physical or Chemical change: Melted chocolate
Chemical
Physical
39
Physical or Chemical change: Boiling water
Physical
Chemical
40
Physical or Chemical change: Baking Bread
Chemical
Physical
41
Balance the equation.
2 CO = 2 C + 2 CO2
2 CO = 2 C + 1 CO2
2 CO = 1 C + 1 CO2
1 CO = 1 C + 1 CO2
42
Use the law of conservation of mass to find the missing mass.
17 g
32 g
18 g
2 g
43
Is the following a sign of a physical or chemical change: Size change
Chemical
Physical
44
Use the law of conservation of mass to find the missing mass.
320 g
180 g
384
64 g
45
Physical or Chemical change: Photosynthesis
Chemical
Physical
46
Is the following a sign of a physical or chemical change: Shape change
Chemical
Physical
47
How many neutrons does this isotope of nickel have?
2
26
30
28
