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The Language of Chemistry
Language of Chemistry Formula: A combination of symbols that shows the ratio of elements in a compound. ex: H 2 O
Chemical Equation: A short, easy way to show a chemical reaction, using symbols instead of words ex: 2Na + Cl 2 2NaCl
Subscript:A small number in a formula that tells the number of each element in a compound. ex: CO 2
Coefficient: A BIG number placed in front of a formula in an equation that tells how many atoms of each reactant and product are involved in a reaction. ex: 2Na + Cl 2 2NaCl
Reactant:A substance that enters into a chemical reaction (what you start with).
Product:A substance formed as a result of a chemical reaction (what you produce or end with).
+:Is added to or combined with. :Yields or produces.
(g): in gaseous state (l): in liquid state (s): in solid state (aq): substance is dissolved in water means heat is added
The Language of Chemistry. Language of Chemistry Formula: A combination of symbols that shows the ratio of elements in a compound. ex: H 2 O.
Balancing Chemical Equations. Writing Chemical Equations Reactant Products Reactant – what you start with in a chemical reaction. It is on the left.
The Chemical Reaction Equation. What it’s all about How much of what to react with something else to make something new. Conservation of mass is the overarching.
Chapter 6 Section 2 Notes A chemical equation is a short, easy way to show a chemical reaction. Chemical equations use chemical formulas and other symbols.
Section 2Chemical Reactions Describing Reactions 〉 What is a chemical equation? 〉 A chemical equation uses symbols to represent a chemical reaction and.
Equations. Chemical Reaction When a substance goes through a reaction and changes into another substance.
Chemical Reactions One or more substances are converted into new substances with different physical and chemical properties. [http://www.hwscience.com/Chemistry/regchemistry/Chemical%20Reactions%20copy.gif]
Writing and Balancing Equations. Chemical Reactions A chemical reaction is the process by which one or more substances are changed into different substances.
Writing Chemical Equations Ch 8. Chemical Equations Give a lot of information about a chemical reaction. Give a lot of information about a chemical reaction.
Chemical Formulas & Equations. Molecule A combination of two or more atoms bonded together.
Molecules and Compounds. Molecule A molecule is formed when two or more atoms join together chemically.atoms Ex: O ₂, NaCl, H ₂ O.
Chemical Equations Aim CE1a What does the chemical equation for photosynthesis tell us?
Pure Substances Mr. Skirbst Physical Science Topic 12.
Chapter 9 Equations. Nature of Chemical Reactions Process in which one or more substances are converted into new substances. Reactants Products Reactants-
IPC Notes Parts of an Equation Types of Reactions.
A chemical equation is a short, easy way to show a chemical reaction using symbols instead of words. A reactant is the substance you have at the beginning.
4.3 Conservation of Mass and Chemical Equations. Learning Goals Learn what is the law of conservation of mass Learn how to represent chemical reactions.
Introduction to Chemical Equations ,
Chemical Formulas and Equations. Parts of a formula Coefficient: the number in front of the symbol, which tells you how many molecules there are. Subscript:
Elements & Compounds Notes TEKS: (6.5) Matter and energy. The students knows the differences between elements and compounds Differentiate between elements.
Chemical Reactions. What is a chemical reaction? A chemical reaction is the process by which the atoms of one or more substances are rearranged to form.
Today’s Objective The student will be able to recognize if a chemical equation is balanced by counting atoms on reactant and product side.
Molecules and Compounds. Compound Formed from 2 or more elements in a specific proportion When combined, new properties are created They contain 2 or.
Balancing equations Unit 2 Chemistry. Writing Chemical Equations Products: are the chemicals that are made or produced in the reaction. Reactants: are.
Chemical Formulas & Equations 8 th Grade Science 2010 H 2 O NaCl CO 2 2H 2 + O 2 = 2H 2 O.
Chemical Reactions. In a chemical reaction: there is a change in the way atoms are joined together there is a change in the way atoms are joined together.
Chemical Reactions. Chemical reaction Process by which atoms of one or more substances are rearranged to form different substances General Rule’s to determine.
Describing Reactions What is a chemical equation? What is a balanced equation? How can equations be checked for balance?
Chemical Reactions: The Law of Conservation of Mass.
Chemical Reactions The result of the chemical reaction is a new substance with unique physical and chemical properties. The result of the chemical reaction.
Law of Conservation of Mass. causes a chemical change, which creates a new substance with new and different properties.
Reactions and Equations. Evidence of Chemical Reactions How can you tell a chemical reaction has taken place? – Temperature change – Color change – Odor.
Warm up In the following reaction, 5g of methane is reacted with 5 g of oxygen. If it makes 8 g of water, how much CO 2 gas is produced? CH O 2 ->
Chemical Reactions. In chemical reactions, one or more substances change into different substances. example: combustion.
Balanced Chemical Equations. Conservation of Matter Matter can neither be created nor destroyed by any physical or chemical change. Atoms that start a.
Chemical Changes Monroe What are the parts to a chemical formula? Coefficient Atoms Subscripts.
Balancing Chemistry RXN. MAKING SENSE OF CHEMICAL EQUATIONS Communication is an important word in today's world. One way chemists can communicate with.
When elements are chemically combined, they form compounds having properties that are different from those of the uncombined elements.
Chapter 8 Chemical Equations and Reactions. Sect. 8-1: Describing Chemical Reactions Chemical equation – represents the identities and relative amounts.
Ch. 8 Chemical Equations and Reactions 8.1 Describing Chemical Reactions.
Balancing Chemical Equations What goes in must come out!
821 Identify the reactants and products of a chemical reaction.
Use the following words: – element – compound – molecule – atom Source: Region 4 Warm Up to Science Compare and contrast CO 2 and O 2 Do now:
Unit 5. converted A chemical reaction is a change in which one or more substances are converted into new substances element compound Review: a substance.
Reactants: Zn + I 2 Product: ZnI 2 used to convey as much info. as possible about what happens in a chemical reaction.
Chemistry Notes: Chemical Reactions Chemistry
Chapter 6 Chemical Reactions Chemistry B2A. Chemical Reactions Chemical change = Chemical reaction Substance(s) is used up (disappear) New substance(s)
Chemical Equations. Chemical Equation: A method of representing reactants and products of a reaction by showing the formulas. Example:2H 2 + O 2 → 2H.
Chapter 6 Chemical Reactions and Equations. Chemical Reactions The process in which 1 or more substances are converted into new substances The process.
Chemical Reactions. What a chemical equation looks like: yields 2 Na (s) + Cl 2 (g) 2 NaCl (s) coefficients symbols state of matter.
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