Balancing Equations Flashcards
What is the state symbol for solids?
(S)
What is the state symbol for liquids?
(L)
What is the state symbol for gases?
(G)
What is the state symbol for aqueous?
(aq)
What is meant by the term aqueous?
Dissolved in water
True or false:
Metals are always solid at room temperature.
False - mercury is a liquid (the exception)
What is a mass change?
When a chemical reaction gains or loses mass
When is mass lost?
When a gas is produced out of the reactants and escapes - as the gas was included in the original mass measure
When will mass be gained in a reaction?
When a gas reacts - gas wasn’t included in original mass measure
What is a precipitation reaction?
When two solutions are mixed together
What mass change occurs during a precipitation reaction?
None - nothing has been gained or escaped
What is meant by conservation of mass?
That the total mass of the reactants must be equal to the total mass of the products
