SNC2D Chemistry Review

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1 SNC2D Chemistry Review 1. For each of the following elements: (a) Draw the Bohr-Rutherford diagram for the neutral atom (b) Determine the charge of the ion each element forms (c) Draw the Lewis dot diagram for each ion Name: Sodium: Aluminum: Sulphur: Fluorine: 2. What is the charge of each of the following ions? Potassium Oxide Iron (III) Phosphide Carbonate Ammonium Chloride Silver Hydroxide Sulfate Any alkali metal: Any alkaline earth metal: Any halogen:

2 2. Given the list below, Draw a wavy underline beneath those compounds that are acids. Name these compounds. Draw a circle around those compounds that are molecular. Name these compounds. Draw a double underline beneath those compounds that contain polyatomic ions and determine the formula and valence charge of the ion. Draw a star next to those compounds that contain multivalent metals. Determine the valence charge of the metal based on how it is combining with the negative ion. Name these compounds. Name all remaining compounds. Al(OH) 3 Fe 2 O 3 HBr (aq) Cu 3 N 2 NH 3 NiSO 4 AgNO 3 Na 3 P CaS H 3 PO 4(aq) SO 3 AuCl 3 PbF 4 PBr 5 NH 4 NO 3 OF 2 P 2 S 4 ZnCl 2 K 2 SO 4 CCl 4 NaHCO 3 C 6 H 12 O 6 3. What does the (aq) written beside the formula for an acid stand for? What does it mean? 4. What are four differences between molecular and ionic compounds? 5. What makes a compound "organic"?

3 6. Given the list below, Draw a wavy underline beneath those compounds that are acids. Write the formula for these. Draw a circle around those compounds that are molecular. Write the formula for these compounds. Draw a double underline beneath those compounds that contain polyatomic ions and determine the formula and valence charge of the ion. Draw a star next to those compounds that contain multivalent metals. Determine the valence charge of the metal based on how it is combining with the negative ion. Write the formula for these compounds. Write the formula for all remaining compounds. calcium hydroxide strontium nitride sulfuric acid methane sodium hydroxide calcium carbonate beryllium phosphide carbon monoxide lead (II) nitrate aluminum fluoride lithium bicarbonate copper (I) oxide magnesium chloride hydrogen peroxide nitric acid sulfur hexafluoride potassium iodide ammonium hydroxide tin (II) sulfide water dinitrogen trioxide hydrochloric acid 7. For each of the following skeleton chemical equations, write the word equation and balance the equation: (a) Pb(NO 3 ) 2 + Na 2 SO 4 PbSO 4 + NaNO 3 (b) NaN 3 Na + N 2 (c) KI + Br 2 KBr + I 2

4 (d) Ni 2 O 3 Ni + O 2 (e) CS 2 + O 2 CO 2 + SO 2 8. For each of the following word equations, write the balanced chemical equation: (a) methane + oxygen carbon dioxide + water (b) barium + oxygen barium oxide (c) aluminum bromide + fluorine aluminum fluoride + bromine (d) lithium sulfate + barium chloride lithium chloride + barium sulfate (e) nitric acid + calcium hydroxide calcium nitrate + water 9. What does balancing chemical equations have to do with the law of conservation of mass?

5 10. Identify the type (synthesis, decomposition, single displacement, double displacement, or combustion) of each of the following reactions: (a) magnesium + oxygen magnesium oxide (b) copper (II) chloride + aluminum aluminum chloride + copper (c) propane + oxygen carbon dioxide + water (d) calcium carbonate calcium oxide + carbon dioxide (e) sulfuric acid + sodium hydroxide sodium sulfate + water (f) FeCl 3 + Mg MgCl 2 + Fe (g) NaN 3 Na + N 2 (h)mg(oh) 2 + AgNO 3 Mg(NO 3 ) 2 + AgOH (i) H 2 + O 2 H 2 O (j) CH 4 + O 2 CO 2 + H 2 O 11. Predict the products of each of the following reactions: (a) magnesium + nitrogen (synthesis) (b) strontium hydroxide + lead (II) bromide + (c) aluminum iodide + bromine + (d) hydrochloric acid + sodium hydroxide + (e) glucose + oxygen + (f) Li + O 2 (synthesis) (g) NaCl + (decomposition) (h) K 2 SO 4 + Al + (i) CaBr 2 + Ba(NO 3 ) 2 + (j) C 4 H 10 + O 2 + (k) One of the reactions above is the reaction for cellular respiration. Which one? (l) The opposite reaction is called.

6 12. Which of the following compounds are acids, which are bases, and which are neutral when in solution? (a) KOH (b) H 2 SO 4 (c) Pb(NO 3 ) 2 (d) NaI (e) HNO 3 (f) NaOH (h) Cu 2 SO 4 (i) H 2 O (j) HF (k) AlCl 3 (l) NH 3 (m) NaHCO (a) Reactions between acids and bases are known as. (b) These reactions always produce and and sometimes also produce. 14. Examples of common household acids are &. Examples of common household bases are &. 15. Predict the products of the following reactions: (a) KOH + HF + (b) HCl + NaOH Predict phs: Neutral solutions.acidic solutions.basic solutions. 17. Give an example of a practical use of a neutralization reaction: 18. (a) What does an acid-base indicator do? (b) Complete the table below: Indicator Colour in an acid Colour in a base Litmus paper Phenolphthalein

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