Multiplication: That they must have the same base and instead of multiplying the exponents you add them.
Division: That they must have the same base and instead of dividing the exponents you subtract them.
Power:
Negative:
Analysis:
What purpose do colors serve for the narrator? Why does the narrator need distractions?
Colors in the sky serve as a distraction for death. The colors appear in the sky when someone passes away and one can imagine during the time of World War II that happened quite frequently. The colors can range from a deep pink all the way to a chocolate shade, which is his favorite color. The reason for the distractions is to make death’s job a lot less morbid then it actually is. Now it’s not the part of collecting the souls of the dead that is depressing for death, it’s the one’s who are still alive that make his job so painful. Needless to say he can’t stand watching them fall-apart with broken hearts, due to the passing of their loved one’s. As said by death himself “I deliberately seek out the colors to keep my mind off them, but now and then, I witness the ones who are left behind, crumbling among the jigsaw puzzle of realization, despair, and surprise”. It’s “funny” to think that someone like death who is viewed to be gloomy and dark would need to be distracted because his job is getting too dark and saddening.
Quickwrite:
What impression does death give of himself? Do you feel you can trust him as a narrator? Why or why not?
While death is talking he portrays himself as a sly character, though you get glimpses where he shows his feelings. He tries to act tough but deep down you know that his job puts a beating on him. He does not consider himself a scary person though you will be damned if you say he is nice: ” I most definitely can be cheerful. I can be amiable. Agreeable. Affable. And that’s only the A’s. Just don’t ask me to be nice.Nice has nothing to do with me”. Death say’s that he is trustworthy and fair and that I can believe. You may think ‘why trust death? He will kill the characters!’, but that is where it lies. Death does not kill the characters he takes the souls of the dead, there is a great difference there. Also, because death was an extremely common part of life during that era, death would always be on his toes seeing watching everything happen. Which is also a bonus because it let’s us see other people’s lives and not just the girl’s (though she is the main focus in the story). Death has been around for a very long time, which also means that he has seen everything happen which leads to great background information so we can better know our characters. He doesn’t only give us flashbacks but also foreshadowing that always keeps the reader guessing and wanting more.
Discussion Questions:
List 3 safety precautions taken in this lab.
To wear safety goggles at ALL TIMES during the lab. If you have long hair to tie it back. Do not throw the burning pieces of wood in the garbage until you have dipped it in water.
What changes did you observe in your reactants? I.e. what were some observations of new products?
When the acid and mossy zinc were added together it started fizzing. The water kept fizzing during the whole experiment and changed into a light grey colour. When the zince and acid strated fizzing it would create hydrogen gas, which would be captured into the test tube. Once it was in the test tube we took a lit wood splint and help in over top of the hydrogen gas. once the fire and gas touched it made a ‘pop’ sound and for the splitest second the gas turned a orange colour.
a. How did the temperature change?
The tempertaure of the flask became hotter due to the fact that it was creating hydrogen gas. When the hydrogen gas was transfered into the test tube then the test tiube also became hot. Also I found that the test tube was the most hot after it created the little ‘pop’. It could have been hotter because when the hydrogen gas (being already hot) and the fire (being very hot) created the ‘pop’ the heat could have mixed together and created even more heat.
Look up the definitions, was the lab endothermic or exothermic? Explain your reasoning.
It is an exothermic lab because exothermic means that heat is being produed from the reaction (Exo= to exit, Therm= heat) . In the lab we putt zinc and acid together to create hydrogen gas, which was hot. The heat from the lab was beaing released, therefore meaning it is an exothermic lab.
Write out the formula for the chemical equation and balance it.
Zinc + hydrochloric acid produces Hydrogen gas + zinc chloride
Zn + HCl 》 H + ZnCl
[ ] Zn + [2] HCl 》 [ ] H + [ ] ZnCl
Look up Synthesis, Decomposition, Single Replacement, and Double Replacement Reactions. What type of reaction is this? Explain.
It is a single replacement reaction. In a single replacement reaction an element reacts with a compound and takes the place of an element within that compound. In a single replacement reaction a metal switches places with a metal and a non-metal switches with a non-metal. In this case as you can see { Zn + HCl = H + ZnCl } that Zinc and Hydrogen switched spots. In a single replacement reaction the elements switch when there is a better (more reactive) element nearby to switch with.
How did the change in surface area of the zinc affect the reaction rate? Which reacted faster?
I believe that the larger surface area would react faster because the solid-phase reactant increases the number of collisions per second and therefore increases the reaction rate.
How did the change in the concentration of HCl affect the reaction rate? Which reacted faster (1 M or 3M)?
3m would react faster because of the collision rate. If you had a beaker of 3m and 1m of HCl and dropped zinc in each one, the one with 3m would react faster because the zinc would come in contact with it first.