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Chemistry Allotropy and The Mole Quiz

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Questions and Answers

What is the smallest unit of an element that retains its chemical properties?

Molecule

Proton

Atom (correct)

Compound

Which term describes a stable, electrically neutral entity consisting of more than one atom?

Molecule (correct)

Element

Proton

Compound

What is the approximate rest mass of an electron in atomic mass units?

1 aem

0.005 aem (correct)

5 aem

0.001 aem

What is the key distinction between allotropy and polymorphism?

Allotropy describes different physical forms of the same chemical element, while polymorphism describes different physical forms of the same chemical compound. Signup and view all the answers

Which type of compound consists of different types of atoms?

Compound Signup and view all the answers

Which of the following statements about molar mass is correct?

The molar mass of a compound is the sum of the masses of all the atoms in 6.02 x 10^23 molecules of that compound. Signup and view all the answers

What is the relationship between the mole and Avogadro's number?

The mole is a unit that represents 6.02 x 10^23 entities, while Avogadro's number is the number of entities in a mole. Signup and view all the answers

Which entity is defined as a stable, electrically neutral entity with more than one atom?

Molecule Signup and view all the answers

What is the characteristic atomic structure of each element primarily determined by?

Atomic structure Signup and view all the answers

If you have a mole of glucose, how many moles of each element (carbon, hydrogen, oxygen) are present?

6 moles of carbon, 12 moles of hydrogen, 6 moles of oxygen Signup and view all the answers

How many molecules of aspirin are present in one mole of aspirin?

6.02 x 10^23 molecules Signup and view all the answers

Which of the following is NOT a property of the mole?

The mole is a unit that represents a dozen entities. Signup and view all the answers

How many atoms of Hydrogen are in one mole of Aspirin?

10 atoms Signup and view all the answers

What is the molar mass of Aspirin?

138.14 g/mol Signup and view all the answers

How many atoms of oxygen are in six moles of oxygen?

48 atoms Signup and view all the answers

According to the Law of Conservation of Mass, what happens to the total mass of matter during a chemical change?

The mass remains constant Signup and view all the answers

Which of the following is an example of a Daltonide compound?

H2O Signup and view all the answers

Which law states that all samples of a pure compound contain the same elements in the same proportion by mass?

Law of Definite Proportions Signup and view all the answers