PSB - Chemistry Questions
#1. Which of the following statements about atoms is true? a. They have more protons than electrons. b. They have more electrons than protons. c. They are electrically neutral. d. They have as many ne...
Annabelle|8 years ago|±0|2 views
chemistry EQ notecards
#1. H - Hydrogen #2. He - Helium #3. Li - Lithium #4. Be - Beryllium #5. B - Boron #6. C - Carbon #7. N - Nitrogen #8. O - Oxygen #9. F - Fluorine #10. Ne - Neon #11. Na - Sodium #12. Mg...
Skyler_Egert|5 years ago|±0|2 views
#1. The use of nanoparticles - In suntan creams #2. How is the size of nanoparticles different from normal-sized particles? - Much smaller #3. What is a catalyst? - It is a substance #4. What does ...
Beast_Boy98|7 years ago|±0|5 views
#1. 1. Gases and liquids share the property of ____ A. definite shape B. compressibility C. incompressibility D. indefinite shape E. definite volume #2. NaHCO3 is the active ingredient in baking ...
Diah|4 years ago|±0|1 view
Unit 7: Naming
#1. Aluminum has ____ valence electrons - 3 #2. Sodium has ___ valence electrons - 1 #3. Beryllium has ___ valence electrons - 2 #4. Bromine has ___ valence electrons - 7 #5. Sodium bromide - NaB...
Staylor|6 years ago|±0|43 views
Unit 10: Chemical Reactions
#1. Chemical reactions occur: - to produce a more stable arrangement of electrons in atoms, ions, or molecules #2. signs of a chemical reactions - formation of a gas precipitate formation chan...
Staylor|6 years ago|±0|53 views
Unit 3: Phases and Energy
#1. Phase Energy (EPh) - The energy stored due to the arrangement of particles (spacing) #2. Thermal Energy (ECh) - The Energy stored by moving particles (speed) #3. Chemical Energy (ECh) - The ene...
Staylor|6 years ago|±0|156 views
Unit 9: IMF
#1. Intramolecular forces - force which keeps molecules together Bonds #2. Intermolecular forces (IMF) - attractive forces between molecules responsible for keeping matter in solid or liquid phas...
Staylor|6 years ago|±0|69 views
#1. Solution - A homogeneous mixture when the particles are to small to be seen; it stays evenly mixed #2. Solute - Any substance that dissolves into the solvent #3. Solvent - Any material in which...
mszmidt|8 years ago|±0|5 views
Unit 11: The Mole
#1. The SI unit that measures the amount of a substance - Mole #2. Avogadro's Number - 6.02x1023 #3. molar mass - the mass of 1 mole of a substance g/mol #4. calculating molar mass - look at the...
Staylor|6 years ago|±0|65 views
Unit 13: Solutions
#1. Solute - dissolved particles in a solution (salt) #2. Solvent - The dissolving medium in a solution (water) #3. Aqueous solution - water that contains dissolved substances #4. Solution - A hom...
Staylor|6 years ago|±0|90 views
Unit 2: Gases
#1. as Pressure increases, Temperature ___ - up #2. as pressure decreases, temperature ____ - decreases #3. as pressure increases, volume ___ - decreases #4. as pressure decreases, volume ___ - in...
Staylor|6 years ago|±0|60 views
Unit 10: Chemical Reactions - Intro
#1. Reactant - Starting substance in a chemical reaction #2. Product - Ending substance in a chemical reaction #3. chemical reaction - reactants --> products #4. skeleton equation - unbalanced equ...
Staylor|6 years ago|±0|62 views