Equations
Avogadro's number
6.022 x 10^23
Tc
Technetium
Is burning paper a Physical or Chemical change?
chemical
Catalyst
A substance that increases the rate of a reaction but
is not consumed in the reaction.
This contains crucial information about chemicals you would use in the lab
Materials Safety Data Sheet (SDS)
Decomposition
AB = A + B
Hg
Mercury
Is boiling water a physical or a chemical change?
physical
Endothermic
An endothermic reaction is one in which the chemical energy of the reactants is less than that of the products (ΔH > 0).
This governmental agency regulates safety for workers
What is OSHA
Single Displacement
AB + C = AC + B
Pm
Promethium
Name three indicators that a chemical change has occurred
change in color, odor, or taste, presence of gas, heat, light
Exothermic
An exothermic reaction is one in which the chemical energy of the reactants is greater than that of the
products (ΔH < 0).
[Double Jeopardy] These are the colors and associated hazards of the NFPA diamond
Blue = Health Hazard
Red = Fire Hazard
Yellow = Reactivity Hazard
Dalton's Law of Partial Pressure
P(a) + P(b) + P(c) + P(d) = P(total)
Dy
Dysprosium
Is the rusting of a metal a physical or a chemical change?
chemical
Thermochemical equation
A chemical equation that includes the enthalpy change of the reaction, ΔH.
Name all parts of the proper PPE attire
Safety Googles, Gloves, Lab Coat, long pants, close-toed shoes+ more depending on lab conditions
Concentration
Concentration = Number of Moles / Volume
Cm
Curium
An apple becoming dark after you bit it and left it for half an hour on the table. Is this a physical or a chemical change?
chemical
Heterogeneous catalysts
Catalysts are in a different state from the reactants.
If there is a fire in the laboratory which you feel is out of control and/or endangers the safety of anyone in the laboratory, you should:
Pull the fire alarm and evacuate the building.