Chapter 1
A homogenous mixture vs a heterogenous mixture, provide the definitions for both.
What is a mixture that mixes evenly vs. a mixture that does not mix evenly?
Find the number of grams (g) in 1 mega gram (Mg).
What is 1 x 106 g per 1 Mg?
The number of sig figs present in the solution: (2.09 x 0.10) - (300.0/29.0).
Column 2 Period 3 of the Periodic Table.
What is Magnesium (Mg)?
Find the charge of the Aluminum (Al) ion. Find how many electrons are present and how many protons are present.
Define Chemistry.
What is the study of matter and how it changes?
Pepsi puts 355 mL of pop in a can. Find the number of drops in a can.
*Hint:*
1 mL =20 drops
*Remember your goal for this problem*
What is: 7.10 x 103 drops of pop?
The ratio between mL and L.
What is: 1000mL =1L OR 0.001L=1mL?
A period definition and a group/column definition.
What is a period (horizontal) and what is a column/group (vertical)?
This element in known by its Latin name in the medical field: Kalium. Often found in medical conditions such as hyperkalemia and hypokalemia. Find which element kalium corresponds to in english.
What is Potassium (K)?
Name the 7 diatomic molecules found in nature/chemistry.
What is: Hydrogen gas, Nitrogen gas, Oxygen gas, Fluorine gas, Chlorine gas, Bromine liquid, and Iodine solid?
Bradford took 4.5 teaspoons (tsp) of honey for a sore throat. If the honey had a density of 1.44 g/mL and there is 5.0 mL in 1 tsp, what was the mass, in grams, of the honey?
What is 32.4 g of honey?
This unit of measurement is equal to 1 cm3.
What is 1mL= 1cm3
The creator of the first modern periodic table.
Who was Dimitri Mendeleev?
Identify the three parts of an atom and their designated charges.
What are protons = +1, neutrons = 0, and electrons = -1?
Define endothermic vs. exothermic reactions.
What is, reactions that absorb heat, and what is reactions that expel/release heat?
The volume of a container has 6.00 cm3 of Mercury (Hg) the density of mercury = 13.5939 g/cm3. Find its mass in grams.
*Hint:*
Remember sig figs
What is 81.6 g of Hg?
Identify the purpose of significant figures in chemistry.
What is precision?
The element/noble gas the Magnesium Ion (Mg2+) wants to be like.
What is Neon?
Name the 3 parts of Dalton's Atomic Theory.
What is:
1) All matter is composed of atoms.
2) The atoms of each element have unique characteristics and properties.
3) In chemical reactions, atoms are not changed, but combine in whole-number ratios to form compounds.
The three main parts of the scientific method.
What is, a hypothesis, a theory, and scientific law?
Convert 60 mi/hr to feet per second (ft/sec).
*Hints*
1 mi=5,280 ft
1 hr = 60 min
1 min= 60 sec
Remember sig figs!
What is 90 (ft/sec)?
The number of sig figs for 12 eggs.
What is: unlimited number of sig figs?
The corresponding names for the following elements: Sb, Pb, & Au.
What is: Antimony, Lead, and Gold?
Name the periodic columns: 1A, 2A, 7A, 8A, with their respective column identification names.
What are: 1A=Alkali Metals, 2A=Alkaline Earth Metals, 7A=Halogens, 8A=Noble Gases?