Term
| How is the Periodic Table of Elements (PTOE) arranged? |
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Definition
The PTOE shows all of the known elements arranged by increasing atomic number
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Term
| The smallest particle of an element: |
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Definition
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Term
| Diatomic molecules and examples: |
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Definition
Elements tha exist as two atoms joined together
Examples: Br2, I2, N2, Cl2, H2, O2, F2
(All are gases except Br2 is a liquid)
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Term
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Definition
Anything that has mass and takes up space.
(includes air!) |
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Term
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Definition
| Has only one type of particle |
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Term
| 2 types of pure substances |
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Definition
1. Element: has only 1 type of atom (Silver (Ag); Oxygen O2
2. Compound has different types of atoms joined together (H20, NaCl) |
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Term
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Definition
| measure of the average kinetic energy of the particles in a sample of matter |
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Term
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Definition
° C or K
Celsius to Kelvin |
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Term
| Formula to convert Celsius to Kelvin (°C to K) |
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Definition
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Term
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Definition
| Amount of space occupied by a substance |
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Term
| what units can volume be measured in? |
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Definition
| L=liters, mL=milliliters, or cm3=cubic centimeters |
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Term
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Definition
Mass per unit of volume
D= mass/volume=g/mL |
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Term
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Definition
Represents the mass of 1 mole of a substance
(for single elements the MM=the atomic mass)
Units=g/mol |
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Term
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Definition
| 6.02 X 1023 particles/atoms (Avogadro's number) |
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Term
| What is the density of an object with a mass of 2.34 and a volume of 7.3 mL? |
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Definition
D = m/v
= 2.34 g / 7.3 mL
= 2.34 ÷ 0.32 g/mL
= 0.32g/mL
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Term
| What group contains the noble gases? |
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Definition
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Term
| What group contains the Alkali Metals? |
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Definition
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Term
| What Group contains Alkaline Earth Metals? |
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Definition
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Term
| What group contains the Halogens? |
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Definition
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Term
| List the 3 main classifications of elements |
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Definition
| metals, non-metals, and metalloids |
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Term
| What element is in group 13, period 3 |
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Definition
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Term
| What element is in group 2, period 4? |
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Definition
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Term
| Identify the group and the period for the element S (Sulfur) |
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Definition
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Term
| What element has the atomic number 12? |
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Definition
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Term
| What is the molar mass for the element Cl? |
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Definition
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Term
| What is the molar mass for H2O? |
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Definition
H: 2 x 1g/mol= 2g/mol
O: 1 x 16 g/mol = 16 g/mol
So the MM = 18 g/mol |
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Term
| How many atoms are found in calcium phosphate Ca3(PO4)2 |
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Definition
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Term
| What is the molar mass of CH3CH2CH3 |
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Definition
H: 8 x 1 = 8 g/mol
C: 3 x 12 = 26 g/mol
MM = 32 g/mol |
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Term
| List how many of each atom in the compound Al(NO3)3 |
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Definition
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Term
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Definition
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Term
| How can you identify the IV and the DV from a title? |
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Definition
The effect of the IV on the DV
Ex. The effect of increasing temperature on the solubility of sugar
IV; temperature (what you will change)
DV: solubility of sugar (measure how much dissolved) |
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