Physical Science Practice Test Chapter 19

Physical Science Practice Test Chapter 19 2014

• Ion Formulas and Charges: A table lists common ions, their formulas, and charges. Examples include: Ammonium (NH₄⁺), Hydronium (H₃O⁺), Acetate (C₂H₃O₂⁻), Carbonate (CO₃⁻²), Hydrogen Carbonate (HCO₃⁻), Hydroxide (OH⁻), Nitrate (NO₃⁻), Phosphate (PO₄⁻³). Peroxide (O₂⁻²), Sulfite (SO₃⁻²), Sulfate (SO₄⁻²), and Chromate (CrO₄⁻²).

• Prefixes for Units of Measurement: A table shows the prefixes for various units of measurement. Examples: exa (10¹⁸), peta (10¹⁵), tera (10¹²), giga (10⁹), mega (10⁶), kilo (10³), hecto (10²), deka (10¹), deci (10⁻¹), centi (10⁻²), milli (10⁻³), micro (10⁻⁶), etc.

Criteria 19.1

• Maximum Electrons in Outer Shell: Elements like Magnesium or Bromine have a maximum number of electrons they can have in their outer shell.
• Atoms and Full Outer Shells: Atoms strive to have a full outer shell (true).
• Molecule Formation: Molecules are formed when atoms join together.
• Lewis Structure for Oxygen: The correct Lewis structure for oxygen is :Ö:.
• Diatomic Elements: Certain elements occur naturally as diatomic molecules. Examples (listed in the doc) include oxygen (O₂).

Criteria 19.2

• Ionic Compounds: A molecule shown is an ionic compound (true or false, from the text).
• Sodium Atom and Full Shell: Sodium's next inmost shell is already full (true or false, from the text).
• Covalent Bonds: Covalent bonds involve electron-sharing between elements (true or false, from the text).
• Valence Electrons in Krypton: Krypton has a specific number of valence electrons.
• Valence Electrons in Strontium: Strontium has a specific number of valence electrons.
• Valence Electrons in Lithium: Lithium has a specific number of valence electrons.
• Electronegativity: Electronegativity measures the attraction an element has for its electrons (true or false, from the text).
• Negative Ions and Electrons: Negative ions have more electrons than protons (true or false, from the text).
• Oxidation Number for Oxygen: The oxidation number for Oxygen.
• Oxidation Number for Iodine: The oxidation number for Iodine.

Criteria 19.3

• Standard Element for Mass Measurement: A specific element is used to measure the masses of all other elements.
• Molecules in a Mole: A mole of any compound contains a specific number of molecules.
• Mass of Ca(C₂H₃O₂)₂: The mass of calcium acetate (a compound), given a certain amount of moles.
• Mass of Uranium: The mass of one mole of uranium.
• Mass of Zn(NO₃)₂: The mass of zinc nitrate (a compound), given a certain amount of moles

Additional Information (Criteria X)

• Conversions: Converting between different units of measurement (millimeters to meters, kilograms to gigagrams, kilometers per hour to meters per second).
• Hydrated Compound: A hydrated compound has water within its structure.
• Mass of CaCO₃: Calculating the mass of calcium carbonate (a compound), given a specific amount of moles.
• Number of Molecules in Water: Calculating the number of water molecules given a volume of water.

Test your knowledge on ion formulas, charges, and unit prefixes with this practice quiz based on Chapter 19 of Physical Science. Explore concepts like maximum electrons in outer shells and molecule formation. Ideal for students preparing for exams in physical science.