- a process where one or more substances (elements) rearrange themselves to form a new substance....

- a process where one or more substances (elements) rearrange themselves to form a new substance.

http://dictionary.reference.com/browse/chemical%20reaction

http://www.sac.edu/students/support_services/ats/students/mgironS16/HM00368_%5B1%5D.gif

What part of atoms are affected?

In a chemical reaction the electrons are affected by forming and breaking chemical bonds.

http://en.wikipedia.org/wiki/Chemical_reaction

What is happening during a chemical Rx?

1. Reactants react to form products.

reactants - the materials that are their before the reaction

products - the substances that are formed from the reaction

2. Substances that are formed from the reaction

http://wildeboer-fitch.wikispaces.com/Chemical+Reaction+Primer

Bubbling Increase or decrease in temperature Light Change in Color Energy Produced Gas Formed Formation of Precipitate (precipitate - a liquid added to a liquid, forming a solid which is the

precipitate)http://wiki.answers.com/Q/What_are_the_5_signs_of_a_chemical_reaction http://images.google.com/imgres?imgurl=http://students.ed.uiuc.edu/ljgriffi/project/grifunit3/1REPLACE.GIF&imgrefurl=http://students.ed.uiuc.edu/ljgriffi/project/grifunit3/

griffchemicalreactions.htm&usg=__3hHoM5XfiXPEqQ9kJMC8UktYZoc=&h=288&w=364&sz=17&hl=en&start=16&um=1&tbnid=AgaL_6Rr0U793M:&tbnh=96&tbnw=121&prev=/images%3Fq%3Dchemical%2Bdecomposition%2Breaction%26gbv%3D2%26um%3D1%26hl%3Den

The Law of Conservation of Mass – “The principle that in any closed system subjected to no external forces, the mass is constant irrespective of its changes in form; the principle that matter cannot be created or destroyed.”

In other words matter can be rearranged but not destroyed or created.

http://en.wikipedia.org/wiki/Conservation_of_mass

http://dictionary.reference.com/browse/conservation%20of%20mass

Chemical reactions are changes that result in one or more new substances.

These changes always have a change in energy.

This means that when a chemical reaction occurs energy is either given off or taken in.

Energy reactions can be described as endothermic and exothermic reactions.

http://www.fordhamprep.com/gcurran/sho/sho/lessons/lesson16.htm

Exothermic - a chemical reaction that releases heat

Releases energy in the form of heat, light and electricity

EX- Rusting Iron

http://jchemed.chem.wisc.edu/JCESOFT/CCA/CCA3/STILLS/GLYCER/GLYCER/64JPG48/7.JPG

http://dictionary.reference.com/browse/exothermic http://en.wikipedia.org/wiki/Exothermic_reaction http://antoine.frostburg.edu/chem/senese/101/thermo/faq/exothermic-endothermic-examples.shtml

Endothermic – a chemical reaction that absorbs heat

Gains energy in the form of heat Need heat to be performed EX - Cooking an egg

Endothermic reaction of

barium hydroxide

and ammonium salt.

http://genchem.chem.wisc.edu/demonstrations/Movies/endosm.gif http://dictionary.reference.com/browse/endothermic http://en.wikipedia.org/wiki/Endothermic

Potential Energy – energy that is stored and can be transformed into other forms of energy such as heat, light, electricity and sound.

http://projectsol.aps.com/images/common/digestion2.gif

http://en.wikipedia.org/wiki/Potential_energy

http://dictionary.reference.com/browse/potential%20energy

Energy that is needed to initiate the reaction

http://www.bio-medicine.org/biology-definition/Activation_energy/

http://media-2.web.britannica.com/eb-media/28/4728-004-3ED6A907.gif

Synthesis Decomposition Combustion Single Replacement Double Replacement

When two or more substances combine to form a more intricate compound. The opposite of Decomposition Basic formula - A +B AB

Example - Hydrogen Gas + Oxygen Gas = Water

Formula - http://www.usoe.k12.ut.us/curr/science/sciber00/8th/matter/sciber/chemtype.htm

http://en.wikipedia.org/wiki/Chemical_synthesis

The process of burning – the production of heat and light

It is an exothermic reaction

Example - CH4 + 2O2 + 7.52N2 → CO2 + 2H2O + 7.52N2 + heat

http://library.thinkquest.org/2923/react.html

http://content.answers.com/main/content/wp/en-commons/thumb/f/f0/200px-Et_baal.jpg

http://en.wikipedia.org/wiki/Combustion

http://dictionary.reference.com/browse/combustion

The flames are caused from the fuel that is going through combustion (burning).

A single, uncombined element replaces another element in a compound

Basic Formula - A+BC AC+B Example – When Zinc combines with Hydrochloric Acid, the Hydrogen is replaced by Zinc. Formula -

http://www.usoe.k12.ut.us/curr/science/sciber00/8th/matter/sciber/chemtype.htm

http://wiki.answers.com/Q/What_is_a_single_replacement_reaction


Visual Single Replacement

A compound that is broken up into two different products. (two at the least)

The opposite of Synthesis Basic Formula - AB A + B Example - Water broken down into hydrogen gas and oxygen gas

Formula –



Two compounds swap places in order to form two new compounds

Basic Formula – AB + CD AD + CB Example – When Silver Nitrate combines with Sodium

Chloride, Silver Chloride and Sodium Nitrate are formed because the Silver and Sodium swap places.

Formula –


Visual Double Replacement

Chemical Reaction Definition –

http://dictionary.reference.com/browse/chemical%20reaction

Chemical Reaction Basics –

http://en.wikipedia.org/wiki/Chemical_reaction

http://wildeboer-fitch.wikispaces.com/Chemical+Reaction+Primer

Signs of a Chemical Reaction –

http://wiki.answers.com/Q/What_are_the_5_signs_of_a_chemical_reaction

The Law of Conservation of Mass –

http://en.wikipedia.org/wiki/Conservation_of_mass

http://dictionary.reference.com/browse/conservation%20of%20mass

Chemical Potential Energy –

http://en.wikipedia.org/wiki/Potential_energy

Endo and Exothermic Reactions – http://dictionary.reference.com/browse/endothermic http://en.wikipedia.org/wiki/Endothermic http://dictionary.reference.com/browse/exothermic http://en.wikipedia.org/wiki/Exothermic_reaction http://antoine.frostburg.edu/chem/senese/101/thermo/faq/exothermic-endothermic-examples.shtml

Activation Energy –

http://www.bio-medicine.org/biology-definition/Activation_energy/

Synthesis Reaction –


Combustion Reaction –


http://content.answers.com/main/content/wp/en-commons/thumb/f/f0/200px-Et_baal.jpg

http://en.wikipedia.org/wiki/Combustion

Single Replacement Reaction –



Decomposition Reaction-


Double Replacement Reaction –


- a process where one or more substances (elements) rearrange themselves to form a new substance....

Documents

energy http

reaction http

mass http

combrowseexothermic

combrowseendothermic

chemi http

energy reactions

heatgains energy