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Science Test Chemical Reactions
Terms in this set (14)
a process in which one or more substances change to make one or more new substances
What are the four clues that a chemical reaction may be occurring
gas formation, solid formation (precipitate), energy change, color change
a combination of chemical symbols and numbers to represent a substance
a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
Count the atoms in 3(NaCl)
a substance or molecule that participates in a chemical reaction
the substance that forms in a chemical reaction
law of conservation of mass
the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
a solid that is produced as result of a chemical reaction in solution
Usually composed of two nonmetals
Usually composed of a metal and a nonmetal
what is the overall charge of ionic compound?
the number placed in front of a chemical symbol or formula
How do you balance equation?
count the atoms, balance the oxygen atoms, balance the hydrogen atoms
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