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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: H2O
Chemical Equation: A short, easy way to show a chemical reaction, using symbols instead of words ex: 2Na + Cl2 2NaCl
Subscript: A small number in a formula that tells the number of each element in a compound.ex: CO2
Coefficient: ex: 2Na + Cl2 2NaClA 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 + Cl2 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
Chemical Reactions The result of the chemical reaction is a new substance with unique physical and chemical properties. The result of the chemical reaction.
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.
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. [
Ch. 8 Chemical Equations and Reactions 8.1 Describing Chemical Reactions.
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Balancing Chemical Equations. Writing Chemical Equations Reactant Products Reactant – what you start with in a chemical reaction. It is on the left.
Pure Substances Mr. Skirbst Physical Science Topic 12.
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Balanced Chemical Equations. Conservation of Matter Matter can neither be created nor destroyed by any physical or chemical change. Atoms that start a.
Molecules and Compounds. Compound Formed from 2 or more elements in a specific proportion When combined, new properties are created They contain 2 or.
Reactants: Zn + I 2 Product: ZnI 2 used to convey as much info. as possible about what happens in a chemical reaction.
Aim CE1a What does the chemical equation for photosynthesis tell us?
Reactions and Equations. Evidence of Chemical Reactions How can you tell a chemical reaction has taken place? – Temperature change – Color change – Odor.
Parts of an Equation Types of Reactions
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.
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 ->
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