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Unit 4
Miscellaneous
100
What is the difference between pure and mixture?
Pure is one element through and through with mixture being a combination of different elements but consistent.
100
What was the name of the model in which JJ Thomson discovered where he observed electrons sporadically placed within protons?
The Plum Pudding Model
100
What happens when lattice energy is higher?
The charges are higher, the ions are smaller, and the ions are more attracted to each other
100
Is HF a polar molecule?
Yes
100
What is Ms. Young’s first name?
Robin
200
1. What is a theory? 2. What is a law?
1. A theory is a hypothesis with substantial evidence. 2. A law is a theory that can be proven over and over.
200
1. What is electronegativity in a simple definition? 2. What is ionization energy in a simple definition?
1. Electronegativity is how much an atom wants another electron. 2. Ionization energy is how much power an atom has to keep/lose electrons.
200
1. Why do non-metals fight over electrons in a covalent bond? 2. Why is a metallic bond called a metallic bond?
1. they have high electronegativity so they want more electrons 2. because it is a bond between two or more metals
200
1. What is the name of the molecular compound PCl3? 2. What is the molecular formula for: Nitrogen triChloride?
1. Phosphorus triChloride 2. NCl3
200
Who was the guitarist for famous rock band: Led Zeppelin?
Jimmy Page
300
1. What is a hypothesis? 2. What are sources of error?
1. A hypothesis is an idea that someone has that they need to test 2. Things that could change the outcome of the lab (Ex-bad hot plate broken beaker)
300
1. Toward the upper right side of the periodic table, what gets higher or lower? 2. Where are the smallest atoms located of the periodic table and why?
1. Toward the top right, discluding the noble gases, electronegativity is higher. Toward the top right, now including the noble gases, ionization energy is higher as well 2. The smallest atoms are located on the top right of the periodic table because their valence electrons are found in a lower electron shell
300
1. What is the name of the bond that occurs between a metal and non-metal? 2. What is the difference between an anion and a cation?
1. ionic bond 2. An anion is an atom that gains electrons and has a - charge and a cation is n atom that loses electrons and becomes +.
300
1. What is an element’s triple point? 2. What bonds can a molecule have to have a Hydrogen Bond?
1. A triple point is when the element is in all 3 phases at once (solid, liquid, gas). 2. ONLY molecules with H-F, H-O, or H-N bonds
300
In the Star Wars films, which actor was Han Solo portrayed by?
Harrison Ford
400
1. What is bias? 2. How big is a km?
1. The authors opinion or past experience changing an article. 2. 1000 meters
400
1. What is one mannerism that electrons possess in terms of movement? 2. What is the difference between an atom and its isotope?
1. Electrons are always moving. 2. An isotope of an atom has the same number of protons and electrons, but a different amount of neutrons.
400
1. What does lattice energy have to do with solubility? 2. What forms when a different solutions/ions are placed and meet up in water and it does not dissolve?
1. If an atom has a higher lattice energy, it will not dissolve which means it’s insoluble. If an atom has a lower lattice energy, it will dissolve which means its soluble. 2. A precipitate (aka solid) is formed.
400
1. What intermolecular forces does SiH2S have? 2. What is the molar mass of K3As?
1. LDF and Dipole-Dipole 2. 192.22 grams
400
What ice cream flavor was invented in the the 1920’s and named after the difficult economic times ahead?
Rocky Road
500
1. What does the word percent mean? 2. How do you find density mathematically?
1. How much of a hundred. 2. Volume divided by mass.
500
1. Which element has a lower ionization energy? Calcium (Ca) or Copper (Cu)? 2. What is the electron configuration for Sulfur?
1. Calcium (Ca) 2. 1s22s22p63s23p4
500
1. What is the name of the group of metals that can have weird valence electrons and one element can have different charges? How are the charges of these metals shown? 2. What does a crystal lattice have to do with lattice energy?
1. Transition metals; through roman numerals 2. Lattice energy is the amount of energy needed to remove 1 ion from the crystal lattice. Higher lattice energy = more attracted/stronger crystal lattice.
500
1. What is the total valence electrons of CH4? 2. Draw the lewis structure for SiO2.
1. 8 valence electrons 2. ::O=Si=O::
500
What label was The Beatles first release on?
Parlophone Records