Chemical reactions

Chemical reactions

7th Grade

17 Qs

quiz-placeholder

Similar activities

วาเลนไทน์สดใส ลูก พ.น ห่างไกลโควิท 19

วาเลนไทน์สดใส ลูก พ.น ห่างไกลโควิท 19

6th - 12th Grade

20 Qs

Pengetahuan Am *remastred*

Pengetahuan Am *remastred*

7th Grade

20 Qs

Our systems

Our systems

1st - 10th Grade

13 Qs

Seeds and plants

Seeds and plants

2nd - 8th Grade

16 Qs

camel adaptations

camel adaptations

5th - 7th Grade

15 Qs

GRADE 7- SCIENTIFIC!

GRADE 7- SCIENTIFIC!

7th Grade

15 Qs

General knowledge

General knowledge

2nd - 12th Grade

14 Qs

T10L5: Recent Climate Change Quiz

T10L5: Recent Climate Change Quiz

7th Grade

15 Qs

Chemical reactions

Chemical reactions

Assessment

Quiz

Science

7th Grade

Hard

Created by

Sara Goda

Used 8+ times

FREE Resource

17 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

The molecule of Nobel gases consists of ……….. atom/s

2 similar atoms

2 different atoms

One atom

3 atoms

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

There is triple covalent bond between …………… molecules.

Water

Oxygen

Ammonia

Nitrogen

3.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

The chemical formula of calcium carbonate is .

CaO

CaNO3

Ca2CO3

CaCO3

4.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

The salt that is formed of combination of positive atomic group and negative atomic group is ………

NH4Cl

(NH4)2CO3

Na2SO4

NH4Br

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

All the following turn the blue litmus paper into red except

HCl

H2SO4

NaOH

HNO3

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

The chemical formula of ferric oxide is ……….

FeO

Fe2O3

Fe3O2

FeO2

7.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

The valency of copper in (Cu2O) is …………..

Monocalent

divalent

trivalent

tetravalent

Create a free account and access millions of resources

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

By signing up, you agree to our Terms of Service & Privacy Policy

Already have an account?