How Much Do You Know About Calcium Carbonate?
How well do you know about calcium carbonate and its characteristics? Do you know it's formula and molar mass? Take this quiz to see how many questions you can answer correctly.
Questions and Answers
- 1.
Which of the following is the correct formula for calcium carbonate?
- A.
CaCO
- B.
CaCO3
- C.
Ca2CO3
- D.
Ca3CO2
Correct Answer
B. CaCO3Explanation
Calcium carbonate is a compound made up of one calcium ion (Ca2+) and one carbonate ion (CO3^2-). The correct formula for calcium carbonate is CaCO3, where the calcium ion is bonded to the carbonate ion.Rate this question:
-
- 2.
Its molar mass is ___________ g/mol.
- A.
90
- B.
95
- C.
100
- D.
105
Correct Answer
C. 100Explanation
The molar mass of the substance in question is 100 g/mol.Rate this question:
-
- 3.
Typically, what state is calcium carbonate found in?
- A.
Liquid
- B.
Solid
- C.
Gas
Correct Answer
B. SolidExplanation
Calcium carbonate is typically found in a solid state. This is because calcium carbonate is a compound that has a crystalline structure and is commonly found in the form of limestone, marble, and chalk. In its solid state, calcium carbonate is stable and does not easily change its form or state of matter.Rate this question:
-
- 4.
Calcium carbonate is also known as ______________
- A.
Limestone
- B.
Rust
- C.
Bauxite
Correct Answer
A. LimestoneExplanation
Calcium carbonate is a chemical compound that is commonly found in rocks and minerals. Limestone is one of the most common forms of calcium carbonate, consisting mainly of the mineral calcite. It is formed from the accumulation of marine organisms such as coral and shells over millions of years. Limestone is widely used in construction, as a raw material in cement production, and as a soil conditioner. Therefore, the correct answer is limestone.Rate this question:
-
- 5.
It is most commonly used for which of the following?
- A.
Fish food
- B.
Supplements
- C.
Fertilizer
Correct Answer
B. SupplementsExplanation
This item is commonly used as supplements.Rate this question:
-
- 6.
It can be found in ______________
- A.
Coral
- B.
Fish
- C.
Herbs
- D.
Animal droppings
Correct Answer
A. CoralExplanation
Coral can be found in the ocean, specifically in coral reefs. Coral is a marine animal that forms colonies and builds a hard, calcium carbonate skeleton. These reefs are home to a diverse range of marine life and are found in tropical and subtropical waters around the world. Coral reefs are important ecosystems that provide habitat for many species of fish, plants, and other marine organisms. They also protect coastlines from erosion and provide economic benefits through tourism and fisheries.Rate this question:
-
- 7.
Which of the following best describes Calcium carbonate's scent?
- A.
Odorless
- B.
Fruity
- C.
Pungent
- D.
Floral
Correct Answer
A. OdorlessExplanation
Calcium carbonate is a compound that is commonly found in nature, such as in rocks and shells. It is widely used as a dietary supplement and antacid. Calcium carbonate does not have a distinct smell or odor, hence it is considered odorless.Rate this question:
-
- 8.
Is calcium carbonate acidic, basic or neutral?
- A.
Acidic
- B.
Basic
- C.
Neutral
Correct Answer
A. AcidicExplanation
Calcium carbonate is a basic compound, not an acidic one. It is a common antacid used to neutralize excess stomach acid. It reacts with acid to form carbon dioxide gas, water, and a salt. Therefore, the given answer is incorrect.Rate this question:
-
Back to top