Inorganic Chemistry

Chemical Formula

100

What is the chemical formula of Sodium Chloride?

NaCl

200

What is the chemical formula of Water?

H₂O

300

What is the chemical formula of Calcium Carbonate?

CaCO₃

400

What is the chemical formula of Copper (II) Sulfate Pentahydrate?

CuSO₄·5H₂O

500

What is the chemical formula of Potassium Hexacyanoferrate(II)?

K₄[Fe(CN)₆]

Chemical Compunds

100

MgO

Magnesium Oxide

200

NH₃

Ammonia

300

Na₂SO₄

Sodium Sulfate

400

FeCl₃

Iron(III) Chloride

500

(NH₄)₂Cr₂O₇

Ammonium Dichromate

Polyatomic Ions

100

Hydrogen Carbonate

HCO₃^-

200

CIO^-

Hypochlorite

300

CH₃COO^-

Acetate

400

Dichromate

Cr₂O₇^2-

500

[Cu(NH₃)₄]²⁺

Tetraaminecopper(II)

Acid and Bases

100

What is the pH of pure water at 25°C?

a. 0

b. 7

c. 10

d. 14

b. 7

200

What is the pOH if the pH is 4?

a. 4

b. 6

c. 10

d. 14  

c. 10

300

what is the pH if pOH = 2?

a. 2

b. 7

c. 10

d. 12

d. 12

400

What is the purpose of the "Comment" feature in Canva? 

A) To order pizza 

B) To leave feedback or ask questions about the design

C) To play a video game 

D) To search for information on the internet

B) To leave feedback or ask questions about the design

500

What is the pOH of a solution with [H⁺] = 2.5 x 10^-4M?

a. 2.6

b. 3.6

c. 10.4

d. 11.4

c. 10.4

Championship Round

100

A solution has [OH^-] = 6.3 x 10^-5 M. What is its pH?

9.8

200

The pH of a solution is 3.5. What is the [OH^-]?

3.6 x 10^-11 M

300

A solution has [H⁺] = 4.5 x 10^-6 M. What is its pOH?

8.65

400

A solution has pOH = 3.72. What is the [OH^-]?

1.91 x 10^-4 M

500

A solution is neutral at 60°C (where Kw = 9.6 x 10^-14). What is its pH?

6.52