Module 7/11
E=hv
Is electric energy kinetic or potential? What's the difference?
Electric energy can be both kinetic and potential.
Kinetic energy comes from movement. Potential energy comes from elasticity, position, or chemical bonds.
What equations do we use for calorimetry when a hot object is in contact with a cold one?
q=ms(Tf-Ti) and q=-q
When two waves overlap, constructive or destructive interference can occur. What is the difference?
Constructive= waves are coordinated, peak overlaps with other peak, trough overlaps with other trough
Destructive= waves are on "opposite timings", a peak overlaps with a trough
Which peer leader has office hours at the same time as Julian?
Fabiola
Do warmer or colder colors tend to have more energy? What about wavelength?
Warmer colors have less energy and a bigger wavelength.
Colder colors tend to have more energy and a smaller wavelength.
What are STP conditions?
Standard temperature and pressure. 1 atm and 273.15 Kelvin
They are all ways of measuring concentration. Molarity uses moles per liter (M)
Volume percentage only uses volume of solute divided by volume of solution (times 100) (v%/v%)
Mass percentage only uses mass of solute divided by mass of solution (times 100) (m%/m%)
Water is amphoteric. This means it can act as both a weak acid or weak base. However, when it's dissolved by itself on more water, is it an electrolyte?
No, it is only an electrolyte when paired with another acid or base.
Who was Julian's peer leader? (guess by looking at the list)
Carlos
The law of conservation of matter is used when balancing chemical equations. It also means, if the reactants weigh 50 grams in total, how much will the products weigh?
The same, 50 grams.
Is Hess's law the direct or indirect method in thermochemistry?
Indirect
What is a precipitate?
Solid, insoluble, compound created in an aqueous reaction
When water freezes, what formation do the molecules adopt?
Hexagonal
What topic will be covered next workshop?
Quantum numbers
The 0th law of thermodynamics states:
Heat flows from hot to cold
What are spectator ions?
Ions participating in a reaction, but whose state doesn't change and they don't become part of the precipitate.
Do molecules attract each other in ideal or real gases?
Real gases
What is Jesus' favorite exploration?
Butane bubbles
What type of reaction requires a hydrocarbon and oxygen to form carbon dioxide and water?
Combustion reaction
What is the difference between thermal energy and temperature?
Thermal energy is the sum of all kinetic energies in an object's particles; temperature is an average.
What is the difference between a total ionic equation and a net ionic equation?
What is the difference between Hadrons and Elementary P's (particles)
Hadrons such as protons and neutrons are bigger and actually composed of elementary P's.
What was the name of module 11's game?
Speed of light