module 5 - section 1 & 2 Flashcards
(15 cards)
what type of reaction is this:
A + B —> AB
combination
what type of reaction is this:
AB –> A + B
decomposition
what type of reaction is this:
A + BC –> AC + B
single replacement
what type of reaction is this:
AB + CD –> AD + CB
double replacement
what type of reaction is this:
Ca + Cl –> CaCl2
combination
what type of reaction is this:
Fe2S3 –> 2Fe + 3S
decomposition
what type of reaction is this:
Cu + 2AgNO3 –> Cu(NO3)2 + 2A
single replacement
what type of reaction is this:
BaCl2 + K2SO4 –> BaSO4 + 2KCl
double replacement
balance this equation:
__Fe + __S –> Fe2S3
2Fe + 3S –> Fe2S3
How many grams of O2 are needed to produce 45.8 grams of Fe2O3 in the following reaction?
4Fe(s) + 3O2(g) –> 2Fe2O3(s)
A. 38.4 g of O2
B. 13.8 g of O2
C. 1.38 g of O2
B) 12.8 g O2
- find the molar mass of Fe2O3
- convert grams of Fe2O3 to moles
- use mole ratio to find moles of O2
- Convert moles of O2 to grams
The reaction between H2 and O2 produces 13.1 g of water. How many grams of O2 reacted?
2H2(g) + O2(g) 2H2O(g)
11.6 g of O2
what is a limiting reagent?
what you have the least of (run out of)
what is a theoretical yield?
the maximum amount you can make
what is the excess reagent?
What you have left over
