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Chemistry- Mole

Review of chapter 6

QuestionAnswer
What is Atomic Mass? The total number of Protons + the number of Neutrons
1 mole = __________ units 6.022×10(^23)
What is a Empirical Formula? The smallest whole number ratio.
What is Mass Percent? A fraction of one subtance to the total mass of a substance.
What is a Molecular Formula? An expression which states the number and type of atoms present in a molecule of a substance.
What is average Atomic Mass? The weighed average mass of all isotopes of an element.
What is Molar Mass? The Mass of one mole of a substance.
What are the substances that are present before a chemical reaction? Reatants
In a chemical equation what does "aq" mean? Aqueous - mixed with water
What is the purpose of balancing equations? The equation will have the same number of elements before and after the reaction.
What are the subsatnces right of the arrow in a chemical equation? The Products
What are some thing that can happen during a chemical reaction? 1. color change 3. Bubbles form 2. A solid forms 4. Heat or flame is produced
Created by: 14volreb
 

 



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