Unit 6 Mastery Test
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is molar mass?
Back
Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). It is calculated by summing the atomic masses of all atoms in a molecule.
2.
FLASHCARD QUESTION
Front
How do you calculate the molar mass of a compound?
Back
To calculate the molar mass, identify the number of each type of atom in the compound, multiply by the atomic mass of each element, and sum the total.
3.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A chemical change is a process where substances transform into different substances with new chemical properties, often indicated by changes such as color, temperature, or the formation of a precipitate.
4.
FLASHCARD QUESTION
Front
What is a precipitate?
Back
A precipitate is a solid that forms and separates from a liquid mixture during a chemical reaction.
5.
FLASHCARD QUESTION
Front
What are coefficients in a chemical equation?
Back
Coefficients are numbers placed before compounds in a chemical equation to indicate the number of moles of each substance involved in the reaction.
6.
FLASHCARD QUESTION
Front
What are subscripts in a chemical formula?
Back
Subscripts are numbers written below and to the right of an element symbol in a chemical formula, indicating the number of atoms of that element in a molecule.
7.
FLASHCARD QUESTION
Front
What is the difference between coefficients and subscripts?
Back
Coefficients indicate the number of molecules or moles, while subscripts indicate the number of atoms of an element in a molecule.
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