Matter can not be created nor destroyed: it can only be
Law of Conservation of Mass/Matter 2

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Chemistry
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Transformed, changed
2.
FLASHCARD QUESTION
Front
The small number to the lower side of an element is a
Back
Subscript
3.
FLASHCARD QUESTION
Front
The large number in front of a compound or element is a
Back
Coefficient
4.
FLASHCARD QUESTION
Front
What is the coefficient in compound 8H6O?
Back
8
5.
FLASHCARD QUESTION
Front
If reaction starts with 20g of reactants, how much product should be produced?
Back
a total of 20g of products
6.
FLASHCARD QUESTION
Front
In a reaction A + B ----> C, reactant A has 10g and product C has 32g. How many grams does reactant B have?
Back
22g
7.
FLASHCARD QUESTION
Front
What is the measure of the amount of matter in a substance?
Back
mass
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