Chapter 10: Acid/ Bases
What is the term referring to a strong electrolyte that donates Hydrogen ion where it can dissolve in water?
A strong acid
What is the main difference for chemical reactions vs nuclear reactions?
Chemical reactions you are working with the valence electrons, but nuclear energy you are looking at protons/ neutrons
What is oxidation?
Losing of electrons
How do we measure energy?
Joules (J)
What is a polymer?
A long molecular chain repeating of subunits
What is the term referring to an electrolyte that accepts Hydrogen ion where it only partially dissolve in water?
A weak base
What is an alpha particle?
Helium element
What is reduction?
Gaining of electrons
What is power?
Amount of energy generated (so used) in a specific amount of time
What is the difference between the thermoplastic and thermosetting polymers?
Thermoplastics bend or can be reshaped when they are heated up (more flexible when heated), but thermosetting does not.
Based on the pH scale, a pH of 6.99 is consider what?
A weak acid
If I have a parent nuclei of Nh-286, what is the daughter nuclei? (What is the atomic number?)
Rg-282
(111)
When it comes to reduction agents, it is paired with which redox reaction?
Oxidation
What is fractionation?
Using the different boiling points from crude oil to separate them for different components/ purposes
What are the 4 steps when a plastic goes through the recycling center?
For additional points: Explain each step
1. Separation
2. Flaking
3. Washing and Sterilization
4. Pure recycled pellets
In the following equation, identify the acid.
H3SO4+ + F- --> H2SO4 + HF
H3SO4+
The longer the wavelength, the ______the frequency, and the _______energy.
The shorter the frequency, the lower the energy
Solve the half reaction:
O2- + 2e- --> O2
Cl- --> Cl + 1e-
O2- + 2Cl- --> O2 + 2Cl
True or false: The heavy snow last Tuesday is the result of climate change
False: result of weather change
What is biodegradability?
Bonus: What are the 2 forces we talked in class? Which one breaks it down faster?
The ability to break the polymers down through natural forces
Sunlight and water
Water
What is the pH if you have 0.00325M of NaOH?
Is this basic or acidic?
pH= 11.51
Basic
What is the difference between fusion and fission?
Fusion is combining of neutrons (needing a lot of heat), and fission is breaking down the element's nucleus/ neutrons (produces a lot of heat)
In the equation below, which one is showing oxidation?
Au3+ +Fe --> Au + Fe3+
Fe (iron)
How does dry-cell battery work?
The electrons from the anode of zinc goes through the wire through oxidation, but flow through the cathode in the return of the battery causing the reduction to occur- a redox reaction
How can we increase sustainability?
Recycle and Reuse