Chapter 1 + 2
List the Chemical Symbols for Calcium, Antimony, and Thallium
Ca, Sb, Tl
cation has a ____ charge and an anion has a ____ charge
postive, negative
What is Avogadro's number?
6.022 x 10^23 particles
What is a precipitation reaction?
a reaction that forms a solid
Provide the formula for hypochlorous acid.
HClO
How do you know how many sigfigs to report when measuring on a graduated cylinder?
One more sigfig than the smallest graduation
what does volatile mean?
lower boiling point(boils off faster than another liquid)
List all the diatomic molecules
Hydrogen, oxygen, nitrogen, fluorine, chlorine, bromine, iodine
define a complete ionic equation
you show reactants and products as present in solution
Provide a formula for Gold (III) acetate
Au(C2H3O2)3
Convert 9.8 m/s to mi/hr
22 mi/hr
Give three examples each of kinetic and potential energy
kinetic - thermal, radiant, sound, energy of motion, mechanical, electrical
potential- gravitational, chemical, nuclear, elastic
What's the difference and relationship between empirical and molecular formula?
empirical- the simplest whole number ratio of each type of atom in a compound
molecular- the specific number of each type of atom in a molecule
there's a whole number multiplier between the two
How do antacids relive heartburn?
neutralizes stomach acids
Provide a name for Co(ClO4)2
Cobalt (II) Perchlorate
Gold has a density of 19.3 g/cm3. The world's largest gold bar has a mass of 551 lbs. What is the volume of the gold bar?
12900 cm3 Au
thermal equilibrium
When sodium metal and chlorine gas are poisonous, how is table salt edible?
when elements combine to form compounds, their properties change completely
What is a redox reaction and provide an example
iron rusting, bleaching of hair, and production of electricity (batteries)
a reaction involving transfer of electrons
Aqueous solutions of ammonium nitrate and potassium hydroxide are mixed.
Provide the balanced equation and predict an observation.
NH4NO3 (aq) + KOH (aq) = KNO3 (aq) + NH3 (g) + H2O (l)
- bubbles
What are all the rules to find out if the zero is significant?
1. all non zero digits
2. interior zeros
3. trailing zeros fall after decimal
In a exothermic reaction, do the products or reactants have more energy?
What about in an endothermic reaction?
exothermic- reactants
endothermic- products
All teams write down as many polyatomic ions with their names and formulas as you can
See sheet
List all the gases that can be evolved in a gas evolution reaction (there are 4)
H2S, CO2, SO2, NH3
1.7 Cal of energy are applied to 34.5 cm3 of gold at 64.4ºF. The density of gold is 19.3 g/cm3. The specific heat of gold is 0.126 J/g*C. What is the final temperature of the gold?
103ºC