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7th
grade

Chemistry

48%

accuracy

328

plays

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varshitha Varshithanupama@hotmail.com

4 years

Chemistry

7th

grade

chemical formulae class 7

user

varshitha Varshithanupama@hotmail.com

328
plays

11 questions

11 questions

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1. Multiple Choice
30 seconds
1 pt
How many atoms of sulfur are in each molecule of H₂SO₄?
1
4
2
7
2. Multiple Choice
30 seconds
1 pt
What is the chemical formula of Magnesium chloride?
MgCl
MgCl₂
MgC
MgC₂
3. Multiple Choice
30 seconds
1 pt
What is the chemical formula of sodium sulfate?
SSO₄
SoSO₄
NaSO₄
Na₂SO₄
4. Multiple Choice
30 seconds
1 pt
What is the name of this chemical, H₂SO₄?
Hydrogen sulfate
Sulfuric acid
Sulfate
Sulfate hydrogen
5. Multiple Choice
30 seconds
1 pt
What is the formula of Copper (II) oxide?
CUO
CuO
CuO₂
Cu₂O
6. Multiple Choice
30 seconds
1 pt
What is the formula of nitric acid?
H₂SO₄
HNO₃
HCl
hno₃
7. Multiple Choice
30 seconds
1 pt
Which of the following compound is not an acid?
HCl
H₂SO₄
HNO₃
CH₄
8. Multiple Choice
30 seconds
1 pt
What is the name of ion that is present in all acids?
hydrogen ion
hydroxide ion
nitrate ion
sulfate ion
9. Multiple Choice
30 seconds
1 pt
Which of the following is not a property of an acid?
pH>7
Sour
Able to conduct electricity
Turns blue litmus paper red
10. Multiple Choice
30 seconds
1 pt
An alkaline taste
salty
bitter
sour
sweet
11. Multiple Choice
30 seconds
1 pt
How many atoms are there in the compound MgCO₃?
3
4
5
6
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