Chemical reactions
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16 Terms
Combination/synthesis
A + B = AB (combine)
Decomposition
AB = A + B (individual)
Displacement
A + BC = AC + B (single replaced)
Double displacement
AB + CD = AD + BC (2 replaced)
Combustion
CxHy + O2 = CO2 + H2O + fire (consistently will have oxygen in the outcome)
When balancing equations, what elements do you leave for last?
Oxygen and hydrogen (use hydrogen first)
What do you multiply by an element number to find molar mass?
The elements atomic mass
What is collision theory?
The theory that states for particles to react, they have to collide with each other with sufficient energy.
What two things influence collision theory?
The amount of energy being released and the frequency of the collisions occurring
A temperature increase makes collision theory…
Have a higher success rate
Concentration/pressure increase makes collision theory…
Have a higher success rate
Increased surface area makes collision theory…
Have a higher success rate
Catalyst being active makes collision theory…
Have a higher success rate
Exothermic reactions…
Release heat
Endothermic reactions…
Absorb heat
What is the chemical equilibrium?
The rate of four reaction being equal to its reverse reaction