Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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
Transcribed Image Text:4. Practice: Chemical reactions are generally classified into five groups, defined below. Balance each
equation, using the Gizmo for help.
Combination (or synthesis) – two or more elements combine to form a compound.
• Na + O2 Na,O
La,O, + H;0 La(OH),
N,O, + H,0 HNO,
Decomposition - a compound breaks down into elements and/or simpler compounds.
• KNO, KNO,+ O2
• NaN,
Na + N,
• NH,NO, N,O + H,0
Combustion – a fuel reacts with oxygen to release carbon dioxide, water, and heat.
• CH, + O2 cO, + H,0
• C,H, + O2 CO2 + H;0
• CH;2O, + O2 CO, + H,0
Single replacement – an element replaces another element in a compound.
• KCI + F2 KF + Cl2
Mg + HCI MgCI, + H2
Cu + AGNO, Cu(NO,); + Ag
Double replacement – two compounds switch parts with one another.
• AGNO, + K,SO, Ag,SO, + KNO,
Mg(OH), + HCI MgCl, + H,O
Al(OH), + H;SO, Al:(SO,), + H,O
Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLeaming M All rights reserved
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