Cydbwyso Hafaliadau Syml

Cydbwyso Hafaliadau Syml

9th - 12th Grade

10 Qs

quiz-placeholder

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Cydbwyso Hafaliadau Syml

Cydbwyso Hafaliadau Syml

Assessment

Quiz

Chemistry

9th - 12th Grade

Practice Problem

Medium

Created by

E Evans

Used 5+ times

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10 questions

Show all answers

1.

MATCH QUESTION

1 min • 3 pts

Parwch y canlynol

2O

Moleciwl ocsigen

O2

Moleciwl magnesiwm clorid

C

Dau foleciwl lithiwm clorid

MgCl2

1 atom carbon

2LiCl

Dau atom ocsigen

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pa rhif sydd angen mynd o flaen arian i gydbwyso'r hafaliad?

2Ag2O → __Ag + O2

4

2

1

3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pa rhif sydd angen i gydbwyso'r hafaliad? 
Mg +  __HCl --->  MgCl2 + H2

1
2
3
4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mae'r hafaliad canlynol yn gytbwys:

CaCO3 --> CaO + CO2

Gwir (true)

Gau (false)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mae'r hafaliad canlynol yn gytbwys:

Na + O2 --> Na2O

Gwir (true)

Gau (false)

6.

DRAG AND DROP QUESTION

1 min • 1 pt

Cydbwyswch yr hafaliad:

​ CH4 + ​ (a)   O2 --> ​ CO2 + ​ (b)   H2O

2
3
4

7.

DRAG AND DROP QUESTION

1 min • 1 pt

ZnO + ​ (a)   Na --> Na2O + Zn

2
3
4
1

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