Kinetics
What is Kinetics?
Branch of chemistry that is concerned with measuring and studying the rates of reactions.
What is the only thing you can adjust when balancing chemical equations?
Chemical Coefficients
What type of chemical reaction is this?
HCl + NaOH = H2O + NaCl
Neutralization reaction/ Double replacement
What type of chemical reaction is this?
2Al2O3 + heat = 4Al + 3O2
Decomposition reaction
Which of the following scenarios will result in a chemical reaction at room temperature with no outside forces in play?
Gas + Gas
Gas + Liquid
Gas + Solid
Gas + Solid
Why do we need to balance chemical equations?
Law of Conservation of Mass
Why will Iron powder burn faster than an iron ingot?
Iron powder will have more surface area to burn faster.
What type of chemical reaction is this?
4Cu + O2 = 2Cu2O
Synthesis Reaction
Balance this chemical reaction:
H2 +O2 = H2O
2H2 + O2 = 2H2O
Which of the following scenarios will result in a chemical reaction at room temperature with no outside forces in play?
Aqueous + aqueous
Aqueous + solid
Aqueous + gas
Solid + Solid
Aqueous + solid
Aqueous + aqueous
How does stirring or mixing a solution affect the rate of that chemical reaction?
Increases the rate of reaction by adding additional energy to the system.
What medicine would likely be better, a crystalline compound that was cooled fast or slow? Explain.
Crystalline compounds that cool at a slower rate are generally purer.
What type of chemical reaction is this?
CH4 + 2O2 = CO2 + 2H2O
Combustion reaction
Balance the following reaction:
Al + HBr = AlBr3 + H2
2Al + 6HBr = 2AlBr3 + 3H2
For the following reaction, write the correct states of matter, predict the products, and balance the chemical equation:
Aluminum metal reacts with iron(II) oxide powder
Al(s) + FeO(s) = NO REACTION
How does changing temperature change the rate of reactions? Explain in detail.
Higher temperatures increase particle motion and particle energy causing reactions to occur faster.
Of the three states of matter that exist on planet Earth, place them in order of how fast they will react in chemical reactions.
Gasses, Liquids, Solids
What type of reaction is this?
Mg + Cu(NO3)2 = Mg(NO3)2 + Cu
Single Replacement Reaction
Balance this chemical reaction:
C2H6 + O2 = H2O +CO2
2C2H6 + 7O2 = 6H2O + 4CO2
For the following reaction, write the correct states of matter, predict the products, state what type of reaction is occurring, and balance the chemical equation:
Methane is ignited
CH4(g) + 2O2(g) = CO2(g) + 2H2O(l)
Combustion reaction
How does changing concentrations affect the rates of reaction. Explain with an example.
2Molar HCl will react faster with a base faster than 1Molar HCl
Under Collision theory, for a chemical reaction to occur what two things must occur?
The particles must collide with enough energy and must collide with the correct orientation
What type of rection is this?
CaCO3 + 2HCl = CaCl2 + H2CO3
Double Replacement reaction
Balance the following reaction:
KCl +Mg(NO3)2 = KNO3 + MgCl2
2KCl +Mg(NO3)2 = 2KNO3 + MgCl2
For the following reaction, write the correct states of matter, predict the products, state what type of reaction is occurring, and balance the chemical equation:
Iron(III) Chloride and sodium carbonate solutions are combined.
2FeCl3(aq) + 3Na2CO3(aq) = Fe2(CO3)3(s) + 6NaCl(aq)
double replacement