Hafaliad y mol
Quiz
•
Chemistry
•
8th - 10th Grade
•
Practice Problem
•
Hard
E Evans
Used 19+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
nifer y molau =
màs ÷ MR
MR ÷ màs
màs x MR
MR x màs
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2Na + Cl2 --> 2NaCl
Os oes gennych nifer y molau o sodiwm, bydd nifer y molau o glorin yn:
hanner nifer y molau sodiwm
dwbl nifer y molau sodiwm
yr un peth a nifer y molau sodiwm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ca + Cl2 --> CaCl2
Os oes gennych nifer y molau o galsiwm, bydd nifer y molau o glorin yn:
hanner nifer y molau calsiwm
dwbl nifer y molau calsiwm
yr un peth a nifer y molau calsiwm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
C3H8 + 5O2 --> 3CO2 + 4H2O
Os oes gen i 2 fol o bropan (C3H8)
Sawl mol o ocsigen bydd angen arnaf i gael adwaith gyflawn?
2
5
10
6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
C3H8 + 5O2 --> 3CO2 + 4H2O
Mae gennyf 132g o bropan (C3H8) Sawl mol sydd gennyf?
AR C = 12, AR H = 1.
2
0.5
0.33
3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
C3H8 + 5O2 --> 3CO2 + 4H2O
Mae gennyf 132g o bropan (C3H8) MR = 44.
Faint o folau o CO2 bydd hwn yn creu?
AR C = 12, AR H = 1.
6
9
12
3
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dewiswch y brawddegau cywir am MR:
Màs moleciwl i gymharu gyda sylweddau eraill yw MR
Mae angen lluosi'r nifer o atomau gyda'r rhif mawr ar y dechrau i gael MR
Mae angen cyfrifo cyfanswm y rhifau màs ar gyfer pob atom mewn un moleciwl i gael MR
MR H2 = 1
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