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Education Chemical equations and reactions

1.  Chemical Reactions are associated with chemicalchange. Whenever a chemical change occurs chemicalreaction is said to take place. Chemical reactions are usually…

Technology Science Form 2 Water And Solution.Ppt New

1. WATER AND SOLUTION FORM 2 2. Wateris a ubiquitouschemical substance , composed ofhydrogenandoxygen , that is essential for thesurvivalof all known forms oflife . In typical…

Education Chem unit 6 presentation

1. Ionic Compounds andMetalsChemistry Unit 6 2. Main IdeasIons are formed when atoms gain or lose valenceelectrons to achieve a stable octet electronconfiguration.Oppositely…

Education Lecture 2.4- Chemical Changes

1. BELLWORK Element, compound, or mixture? Classify the following materials as an element compound or mixture.Givereasonsfor your answers . Table salt (NaCl) Salt water Apple…

Technology Ch 7 thermodynamics (1)

1. Why changes take placeSpontaneous process Takes place ‘naturally’ with no apparentcause or stimulus.Nonspontaneous process Requires that something be done in orderfor…

Technology Year 9 Biology Topic Plants and Photosynthesis

1. KS3 Biology 9C Plants andPhotosynthesis1 of 20 24© Boardworks Ltd 20042005 2. Contents9C Plants and PhotosynthesisWhat is photosynthesis?Leaves and glucoseRoots and waterSummary…

Business Chapter 8-1 and 8-2

1. CHEMICAL EQUATIONS ANDREACTIONSChapter 8.1 2. Objectives:1. List three observations that suggest that achemical reaction has taken place.2. List three requirements for…

Technology Unit 1 matter and physical chemical changes NOTES

1.  Matter: anything that has mass andtakes up space Mass – the amount of matter in something. Volume – the amount of space somethingoccupies.Weight = amount…

Education Chem unit 6 presentation

1. What is an Ionic Bond? Chemistry Unit 6 2. Main IdeasIons are formed when atoms gain or lose valenceelectrons to achieve a stable octet electronconfiguration.Oppositely…

Technology Fuel cells

1. Presentation on Fuel CellsBy :-Naveen Sihag 2. Introduction  It is an electrochemical device which convert hydrogen and oxygen into water producing electricity and…