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Eleventh Grade (Grade 11) Chemistry Questions

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Grade 11 Biochemical Pathways
Which of the following best summarizes photosynthesis?
  1. H2O+ CO2 + sunlight ------> O2 + glucose
  2. H2O + O2 + sunlight -------> CO2 + glucose
  3. O2 + glucose -------> H2O + CO2 + energy
  4. CO2 + glucose ------> H2O + O2 + energy
Grade 11 Chemistry
Based on the equation shown below:
[math]AlCl_3 + MgS rarr Al_2 S_3 + MgCl_2[/math]
Where should a coefficient of "2" be placed to balance the equation?
  1. In front of [math]AlCl_3[/math]
  2. In front of MgS
  3. In front of [math]Al_2 S_3[/math]
  4. In front of [math]MgCl_2[/math]
Grade 11 Chemistry
What is the chemical name for the formula [math]I_2 N_5[/math]?
  1. diiodine nitride
  2. iodine nitride
  3. diiodine pentanitrogen
  4. diiodine pentanitride
Grade 11 Macromolecules
Which of these is any very large complex molecule?
  1. nucleic acid
  2. macromolecule
  3. polymer
  4. phosphate
Grade 11 Chemistry
A chemical can be defined as:
  1. a toxic substance
  2. an unnatural additive in food
  3. any substance that has definite composition
  4. an substance that is not alive
Grade 11 Stoichiometry
What is the formula for Copper(II) Nitrate?
  1. [math]Cu_2NO_3[/math]
  2. [math]Cu(NO_3)_2[/math]
  3. [math]Cu_3N_2[/math]
  4. [math]CuN[/math]
Grade 11 Chemistry
An atom is
  1. the smallest unit of matter that maintains its chemical identity.
  2. the smallest unit of a compouond
  3. always made of carbon
  4. smaller than an electron
Grade 11 Chemistry
Grade 11 Chemistry
Organic chemistry is the study of
  1. properties, changes, and relationships between energy and matter
  2. the chemistry of all living things
  3. crystals and minerals
  4. carbon-containing compounds
Grade 11 Chemistry
Which of the following is NOT a physical change?
  1. grinding
  2. cutting
  3. boiling
  4. burning
Grade 11 Chemistry
Grade 11 Chemistry
In a chemical reaction, the mass of the products                                                 .
  1. is less than the mass of the reactants
  2. is greater than the mass of the reactants
  3. is equal to the mass of the reactants
  4. has no relationship to the mass of the reactants
Grade 11 Macromolecules
What is the amino acid which corresponds to the mRNA code of AAU?
  1. Asparagine
  2. Arginine
  3. Alanine
  4. Aspartic Acid
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