The Periodic Table of the Elements
In 1869, a Russian chemist named Dmitri Mendeleev came up with a way of organizing the
elements that were known at that time. He placed them in order of their atomic weight and then
grouped them into rows and columns bas
1. Among the following pairs of compounds, which is made up of only polar molecules?
2. What type of bond occurs in the chlorine molecule?
Van der Waals
compound that gives off H+ ions in solution
describes a solution with a high concentration of H+ ions
ions with a negative charge
the electrode where electrons are lost (oxidized) in redox reactions
common units for mea
1. Which of the following has square-planar molecular geometry? (ANSWERS IN BOLD)
2. Which of the following has a T-shaped structure?
3. Which series correctly identifies the h
gives an electric current with a steady voltage as a result of an electron transfer reaction
device that moves electrons into or out of a solution by conduction
changing the chemical structure of a compound usi
describes an object's ability to repel or attract other objects. Protons have a positive
.while electrons have a negative. Like .repel each other, while opposites attract.
processes or events that have altered the fundamental struc
instrument that measures radiation output
Gibb's free energy
the energy of a system that is available to do work at a constant temperature and
the rate of diffusion of a gas is inversely proportional to the square root
1. Name the orbitals described by the stated quantum numbers.
a) n=3, l=0 3s
b) n=4, l=2 4d
c) n=5, l=3 5f
2. State the "n" and "l" quantum numbers for the following orbitals?
a) 4d n = 4, I = 2
b) 5f n = 5, I = 3
3. What are the possible ml values for th
Unit 2: Structure and Properties Test Review: You will be permitted a single, hand-written, doublesided cheat sheet; no electronics or internet access allowed.
Topics to Review:
Electron Configurations of Elements / Ions
Predict and explain Polar / Non-po
1) INFORMATION RESEARCH The 2020 Water Crisis!
It is a process in which dissolved inorganic solids (such as salts) are removed from a
solution (such as water). water by pushing it under pressure through a semi-permeable
Reverse Osmosis Membrane.
GHS Honors Chemistry
Acid-Base Titration Lab
Name: _ Date: _ Block:
PURPOSE: To determine the concentration of a solution of hydrochloric acid by acidbase titration.
Titration is a laboratory technique by which we can determine the
APPLY BASIC EXERCISE
SCIENCE TO EXERCISE
VCE / VET
FITNESS FOCUS BUNDLE ONE
Competencies addressed in this workbook task
Apply Basic Exercise Science to Exercise Instruction
Element Three Apply a knowledge of the b
Acid Base Titration
Titration is a method by which an unknown concentration of a solution can be determined by comparing
it with a solution having a predetermined or standard concentration. To titrate an acid versus a base,
1) Earth's Atmospheric composition is 78% nitrogen and 21% oxygen, with trace amounts of
water vapor, carbon dioxide and other gaseous molecules. The concentration of Nitrogen &
oxygen are the two most prominent gases in the earth's atmosphere. These and
1) 2/18 x 9000 g
1/9 x 9000 g = 1000 g
1000 g x 22.4 L/mole= 22 400 L
Answer: 22 400 L
n = .960396 atm*10L
n = *0.0821*297K
n =.393868 mole O2
n = .393868 mole O2 x (32g / 1 mole O2)
n =12.6038 g O2
Answer: 12.6038 grams
3) Water usually boils a
1a) The marshmallow started growing bigger.
b) Overtime the marshmallow grew until I took it out at the 45 second mark, is when it was the
biggest. During the time it was still hot the marshmallow had some form and was still large.
After it had cooled it
b) Written Report
This ad is being directed towards adults who own a vehicle and/or adults who are considering
buying a new car. This ad would be effective towards that general group because the customers
are being adressed directly. Since the words "you"
1) The particles in a gas move freely and quickly everywhere, since they have the highest
2) Solids have both fixed volumes and fixed shapes.
Gases have neither fixed volumes nor fixed shapes, and expand to fill their containers.
3) All co
1) An Arrhenius acid increased the concentration of H+ or H3O+ ion in water and the base
increases the concentration of OH- ions. A Bronsted-Lowry base donates a hydrogen ion and a B-L
base accepts a hydrogen ion. The hydrogen ion can refer to either H+ o
1) Boiling Point, melting point, and density.
2 a) Protons
b) According to the Bohr or solar system model of matter, every atom consists of a nucleus with
a certain number of electrons rotating about the nucleus in their orbits. The nucleus is much
1) INFORMATION ON BENEFITS OF SCRUBBERS
POINT ONE - Major step for Coal Power Plants to Go Green : Sulfur dioxide is a colorless gas
that can be released into the air through various manufacturing processes, particularly through
the combustion of coal for
1) The problem with this arrangement was that Dobereiners model became outdated as new
elements were identified. A good model is able to incorporate newly understood information.
Dobereiners Triad Model was not useful, since several newly discovered eleme
Where is it
Why is this
Carbon Dioxide +
C3H8 + 5O2
4H2O + 3CO2 +
reaction is for the
burning of fuel
that is us
1) Calcium (II) chloride (CaCl2) has a solid has a unit cell, with each Calcium cation surrounded
by four chloride anions. The size of these ions is such that water molecules can easily surround
them when they are at the surface of the solid. This changes
1) A radical contains at least one unpaired electron. Most molecules contain even
numbers of electrons, and the covalent chemical bonds holding the atoms together
within a molecule normally consist of pairs of electrons jointly shared by the atoms
1) Ionic substances like NaCl are held in place by the most severe forces of atomic attraction.
Salt has a rather high melting point. Meaning you could not melt salt on regular heat in your
home. Unlike sugar, glucose is just a covalently bonded chain. A
1a) Exothermic Reaction.
CrO3 + 2 Al Cr + Al2O3
3 MnO2 + 4 Al 3 Mn + 2
3 BaO + 2 Al 3 Ba + Al2O3