Questions and Answers
What is the origin of the term 'mole' in chemistry?
The term 'mole' comes from the Latin word meaning 'heap' or 'huge pile'
What is the difference between isotopes of the same element?
Isotopes have the same number of protons in the atomic nucleus but a different number of neutrons
What is the significance of Avogadro's number?
Avogadro's number is a large value (6.02 x 10^23) because the masses of atoms are small
How is the molar mass of an element calculated?
Signup and view all the answers
What is the difference between formula mass and molecular mass?
Signup and view all the answers
What information is implied by one mole of an element?
Signup and view all the answers
What is the term for the solidified lava flow that originally forced its way between rocks?
Signup and view all the answers
What is the name of the fast-moving current of gases and rocks that includes pumice, ash, and block flow?
Signup and view all the answers
What is the term for particles that are less than 2mm in diameter?
Signup and view all the answers
What is the term for the mixture of volcanic debris and water that flows down the slopes of a volcano?
Signup and view all the answers
What is the term for the highest point of the apex of a volcano?
Signup and view all the answers
What is the term for the channel or pipe that conveys liquid magma?
Signup and view all the answers