chemical reactions
types of reactions
vocabulary
rates of reactions
labs
100
In a chemical reaction a. atoms are created b. atoms are destroyed c. atoms are rearranged
C
100
reactions that absorb energy
What are endothermic reactions?
100
A participant in a chemical reaction. (things to the left of the arrow)
What is reactant
100
True or False Increasing the surface area of reactants increases the reaction rate
What is true
100
When you added your seltzer tablet to water what indication did you have that a chemical change was taking place?
bubbling and fizzing
200
In a chemical reaction, this is what the arrow points to (to the right of the arrow)
What are products
200
AB + CD ------> AD +BC What type of reaction is this?
What is double displacement?
200
What is formed in a chemical reaction (things the arrow points to)
What is product
200
True or False Decreasing the concentration of the particles will increase the reaction rate.
What is false?
200
Breaking the seltzer tablet produced a faster reaction. What factor that affects reaction rates did this demonstrate?
What is increasing surface area?
300
reactions that release energy
What is exothermic
300
This type of reaction Na + Cl -------> NaCl
What is synthesis?
300
A reaction where oxygen is a reactant and heat and light are produced
What is combustion?
300
True or false. Increasing the pressure of a gas can increase the reaction rate.
True
300
The temperature decreased when vinegar and baking soda were mixed. Is this exothermic or endothermic?
What is endothermic?
400
Reactions where the energy of the products is less than the energy of the reactants
What is exothermic
400
This type of reaction KCrO --------> KCr + O
What is decomposition?
400
a substance that can speed up a chemical reaction without being consumed or changed.
What is catalyst
400
factor that increases a reaction rate by increasing the speed of the particles.
What is increasing temperature?
400
The temperature of water that gave the slowest reaction rate when a seltzer tablet was added.
What is cold?
500
What is happening in the "uphill" of an energy diagram
What is breaking bonds?
500
This type of reaction CuCl2 + 2Al ------> 2AlCl3 + 3Cu
What is single displacement?
500
varieties of an element having the same number of protons but a different number of neutrons.
What is isotope
500
factor that increases reaction rates by decreasing the activation energy
What is a catalyst?
500
Mixing yeast and peroxide released energy. What type of reaction was this?
exothermic
M
e
n
u