Lesson 6 - Chemical Reactions Flashcards
In a chemical equation, which comes first? The reactants or the products?
Reactants
In a chemical equation, which comes second? The reactants or the products?
products
What does + mean
and or plus
What does → mean
“reacts to form” or “yields”
What does (s) mean
solid
What does (l) mean
liquid
What does (g) mean
gas
what does (aq) mean
aqueous (water)
what does an arrow with a triangle above it mean
heat was added
What does ⇌ mean
reversible reaction
What are the four indications of a Chemical Reaction?
Heat and light, production of gas, formation of a precipitate, and color change
True or False: a Chemical equation does NOT have to be in simplest form
false
True or False: a Chemical equation DOES have to be in simplest form
True
Which elements gets 2 atoms automatically when by themselves
elements that end with “gens”
Which of the following would NOT get two atoms: Hydrogen, Fluorine, Oxygen, Chlorine, Nitrogen, Iodine, Carbon
Carbon
What type of reactions is this: A + B → AB
Synthesis
What type of reactions is this:
AB + C → B+AC
Single Replacement
What type of reaction is this:
AB → A + B
Decomposition
What type of reaction is this:
AB + CD → AC+ BD
Double Replacement
What type of reaction is this:
O2 + ___ → CO2 + H2O
Combustion
What is the Activity Series
a list of organized elements to which certain elements can or cannot replace one another
True or False: in the Activity Series, an element on bottom CAN replace an element on top
False
True or False: in the Activity Series, an element on bottom CAN’T replace an element on top
True
Which kind of reactions use the activity series
Single displacement
