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6.5 f - Lesson 5

Chemical Reactions

QuestionAnswer
Chemical equations can be used to model chemical changes. True
Matter is conserved because atoms are conserved in _____ processes. Chemical and physical
What is the product in the chemical equation below? C  +  O2  →  CO2 CO2
Chemical equations illustrate how atoms of elements _____ in a chemical reaction. rearrange
How many elements are present in the chemical equation for iron oxide? 4Fe + 3O2 + 6H2O → 4Fe(OH)3 3
Chemical equations tell us how long a chemical reaction will take. False
Chemical equations are used to illustrate how elements become rearranged in a chemical _____. reaction
A balanced chemical equation has the same number of atoms of each element on each side of the equation. True
How many atoms are in one molecule of carbon dioxide? CO2 3
Created by: Johnsopd
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