chapter 8 info.\ Flashcards
what is true regarding the law of conservation of mass
it dictates that the number of atoms of each element must be the same on both sides of a chemical equation
what indicates that a chemical reaction has occured
release of energy as light
a color change
gas bubble formation
these facts represent what
must be balanced
must contain proper chemical formulas
should represent known data
properly written chemical equation
the formula for a substance in water solution is followed by the symbol
(aq)
the greek letter delta (triangle) above the arrow in a chemical equation means
the reactants are heated
what type of chemical reaction results in the formation of a single product
synthesis
what can be formed by double displacement reactions
gas
precipitate
water
name possible types of displacement reactions
displacement of the metal in a compound by another metal
displacement of the halogen in a compound by another halogen
displacement of the hydrogen in water by a metal species
what is true of decomposition reactions
electricity may be used as the energy source
two or more products
in the activity series, the more active elements are found
at the top
the activity series was established through
a series of experiments involving replacement reactions
what can you predict by using an activity series
whether a certain displacement reaction can occur
