Chemical Reactions
A single element.
What do coefficients tell you?
how many moles are in the equation.
What is stoichiometry
greek root
What is the most dangerous form of radiation?
Gamma Particles
The left side is called?
Reactants
What type of Rxn is:
AB+CD->AD+BC
SIngle Displacement
What is molar mass?
atomic #
What are empirical formulas?
reduced forms of a chemical compound
What the charge of Alpha particles
+2
What is half-life?
The time required for a reactant concentration to decrease to one-half its initial value (t1/2)
Synthesis
Find the Molar Mass of NaCl
NaCl=58 g/mol
4.73 mol of Al how many Al2O3
Al-> Al2O3
2.365 mol Al2O3
What the least dangerous form of radiation
Alpha
The right side is called?
Products
Balance _Al(NO3)3+_Mg->_MG(NO3)2+_Al
2Al(NO3)3+3Mg->3MG(NO3)2+2Al
What is Aubqadro´s Number
1 mole=6.022 x 10²³
WHat is percent yield equation?
Actual yield/theoretical yield x100
This equation20684Po→42He+20282Pb is an example of...
Alpha Decay
Whats the formula for Equilibrium
aA+bB→cC+dD
Balance _FeO+_O2->_Fe2O3
4FeO+_O2->2Fe2O3
What is the Molar Mass of Mg3(PO4)2
Mg3(PO4)2=262 g/mol
What is endothermic
Absorbs heat
This equation 12451Sb→0-1B+ 12452Pb is an example
Beta decay
Gold-198 has a half-life of 2.7 days. How much of a 96g sample will be left after 8.1 days?
8.1 /2.7= 3 half lifes