Molar Mass
What is the molar mass for:
H2O
18 g/mol
What is the relationship between 1 mole and molar mass?
Same.
1 mole = molar mass
Only add ________ when balancing.
coefficients
What happens during a synthesis reaction?
put together
increased temperature will make a reaction go ______
faster
What is the molar mass for N2O5
108 g/mol
When converting from grams to moles what will go on the top of the fraction in the set up?
1 mole
what is the law of conservation of mass.
mass/matter can not be created or destroyed
what happens during a decomposition?
break apart
If a chemical is diluted (watered down) the reaction will go ______.
slower
what is the molar mass for NaHCO3
84 g/mol
How many moles are in 20 grams NaCl?
0.34 moles
Balance:
__Na + ___Cl2 --> ___NaCl
2, 1, 2
What do you always need for a combustion?
What are the products?
Need O2
products: H2O and CO2
What will dissolve quicker and WHY? sugar grains or sugar cubes
grains because more surface area
what is the molar mass for Fe2(SO4)3
400 g/mol
how many grams are in 2 moles C4H8
112 g
Balance:
__Br2 + ___NaCl --> ___NaBr + __Cl2
1, 2, 2, 1
Identify:
Pb + CuNO3 --> PbNO3 + Cu
single replacement
color, pH, gas formation, precipitate, energy
what is the molar mass for Ca3(PO4)2
310 g/mol
How many grams are in 4 moles CaCl2
440 g
Balance:
____C3H8 + ___ O2 --> ___CO2 + ___H2O
1, 5, 3, 4
predict the products:
CuSO4 + Na2CrO4 -->
CuCrO4 + Na2SO4
precipitates form during double replacement reactions. What is a precipitate?
solid formation