2/20 & 2/23

Warm-up Pg 1 # 1 Zinc forms an ionic compound with an oxyanion. The formula is 44.97% Zn and 22.02% S. What is the formula and name of the compound? Answer- ? Mol Zn = 44.97 g Zn 1 mol Zn = 0.68772 mol = 1 65.39 g 0.68772 mol ? Mol S = 22.02 g S 1 mol S = 0.68692 mol = 0.9988 32.056 g 0.68772 mol ? Mol O = (100-66.99) g O 1 mol O = 2.0644 mol =3.00 15.99 g 0.68772 mol Formula: ZnSO3 Name: Zinc Sulfite

Warm-up Pg 1 # 1 Zinc forms an ionic compound with an oxyanion. The formula is 44.97% Zn and 22.02% S. What is the formula and name of the compound? Answer- ? Mol Zn = 44.97 g Zn 1 mol Zn = 0.68772 mol = 1 65.39 g 0.68772 mol ? Mol S = 22.02 g S 1 mol S = 0.68692 mol = 0.9988 32.056 g 0.68772 mol ? Mol O = (100-66.99) g O 1 mol O = 2.0644 mol =3.00 15.99 g 0.68772 mol Formula: ZnSO3 Name: Zinc Sulfite

Mixed Review for the Test next class You will now do a mixed review for all the reaction types we have studied. This is a good indication of test questions. Consider it a test review! You will work with your face partner to answer the questions. You must show your OWN work! Please number all problems. Work will be due at the end of class. The questions will rotate clockwise around the classroom every 5 minutes. If you do not finish a question there will be time at the end to go back to the ones you missed.

Valentines Cards MUST BE school appropriate (and kind) Be creative with your puns and decorate your cards Want a specific teacher? Put a tally next to their name on the list. Teachers max out at 6 cards! You don’t have to put your name on it. Don’t want to make puns? I need bags decorated too!

Reaction Practice #1 Write the balanced chemical equation with state signifiers for the following reaction: Calcium hydroxide (aq) reacts with phosphoric acid (aq). Part B: Type of reaction? Part C: Write the Net Ionic Equation

Reaction Practice #2 Write the balanced chemical equation with state signifiers for the following reaction: Barium chloride and sodium sulfate react. Part B: Type of Reaction Part C: Is this reaction a redox reaction? Yes or No?

Reaction Practice #3 Write the balanced chemical equation with state signifiers for the following reaction: Hydrochloric acid is dripped onto solid calcium carbonate. [NOTE: the solid calcium carbonate will dissolve in the water that the hydrochloric acid is dissolved in and a reaction will occur.] Part B: Type of Reaction

Reaction Practice #4 Write the balanced chemical equation for the following reaction: Solid magnesium reacts with iodine vapor. Part B: Is this reaction a redox reaction? Yes or No? Part C: Type of Reaction

Reaction Practice #5 Xylitol is a sugar alcohol used in chewing gum. Its chemical formula is C5H7(OH)5. Write the balanced chemical equation for the combustion of xylitol. Part B: Type of Reaction

Reaction Practice #6 Examine the following chemical equations. There are mistakes in the chemical formulas. Correct the mistakes and balance the equations. Zn + HCl → ZnCl + H CaSO4 + AlBr3  CaBr3 + AlSO4 KPO4 + HCl2  KCl2 + HPO4

Reaction Practice #7 Write the balanced chemical equation for the following reaction: Chromium(III) perchlorate is heated over a flame. Part B: Is this reaction a redox reaction? Yes or No? Part C: Type of Reaction

Reaction Practice #8 Write the balanced chemical equation for the following reaction: Cobalt(IV) carbonate is heated over a flame. Part B: Type of Reaction

Reaction Practice #9 Write the balanced chemical equation for the following reaction: Bismuth (V) hydroxide is heated over a flame. Part B: Type of Reaction

Reaction Practice #10 Write the balanced chemical equation for the following reaction: Nickel(I) oxide reacts with water. Part B: Type of Reaction

Reaction Practice #11 Write the balanced chemical equation for the following reaction: Nickel(I) oxide and carbon dioxide react. Part B: Type of Reaction

Reaction Practice #12 Write the balanced chemical equation for the following reaction: Sulfur dioxide is bubbled into water. Part B: Type of Reaction

Reaction Practice #13 Write the balanced chemical equation for the following reaction: Zinc sulfide is electrolyzed. Part B: Type of Reaction Part C: Identify which reactant was reduced and which was oxidized.

Reaction Practice #14 Write the balanced chemical equation with state signifiers for the following reaction: Solid magnesium is placed in an iron(III) chloride solution. Part B: Type of Reaction Part C: Identify which reactant was reduced and which was oxidized.

Reaction Practice #15 Write the balanced chemical equation with state signifiers for the following reaction: Sulfurous acid is warmed. Part B: Type of Reaction Part C: Identify which reactant was reduced and which was oxidized.

Reaction Practice #16 Write the balanced chemical equation with state signifiers for the following reaction: Solid ammonium carbonate is a compound used in baking. Write the reaction that occurs when it is heated. Part B: Type of Reaction

Reaction Practice #17 Write the balanced chemical equation with state signifiers for the following reaction: Aqueous barium hydroxide and ammonium nitrate are combined. Part B: Type of Reaction Part C: Write the net ionic equation

Reaction Practice #18 Write the balanced chemical equation with state signifiers for the following reaction: Solid aluminum is submerged in a sulfuric acid solution. Part B: Type of Reaction Part C: Identify which reactant was reduced and which was oxidized.

Reaction Practice #19 Identify the type of reaction and use the appropriate reference material to determine whether each will occur. Na + H2O  NaOH + H2 Cu + Zn(NO3)2  Cu(NO3)2 + Zn Mg(NO3)2 + K3PO4  Mg3(PO4)2 + KNO3 NaCl + F2  NaF + Cl2

Reaction Practice #20 Deoxyribose is the sugar in DNA, deoxyribonucleic acid. Its chemical formula is C5H10O4. Write the balanced chemical equation for the combustion of deoxyribose. Part B: Identify which reactant was reduced and which was oxidized.

Reaction Practice #21 Write the balanced chemical equation with state signifiers for the following reaction: A solution of iron(II) nitrate is added to a solution of silver sulfide. Part B: Type of Reaction Part C: Write the net ionic equation

Reaction Practice #22 Write the balanced chemical equation with state signifiers for the following reaction: Chlorine gas is bubbled into a solution containing cadmium bromide. Part B: Type of Reaction Part C: Identify which reactant was reduced and which was oxidized.

Reaction Practice #23 Write the balanced chemical equation with state signifiers for the following reaction: A solution of copper(II) perchlorate has gold nuggets added to it. Part B: Type of Reaction

Reaction Practice #24 Write the balanced chemical equation with state signifiers for the following reaction: A solution of chlorous acid is poured on top of a piece of barium. Part B: Type of Reaction Part C: Identify which reactant was reduced and which was oxidized.

Reaction Practice #25 Write the balanced chemical equation with state signifiers for the following reaction: Calcium is added to a container filled with water vapor. Part B: Type of Reaction Part C: Identify which reactant was reduced and which was oxidized.

Reaction Practice #26 Write the balanced chemical equation with state signifiers for the following reaction: Solutions of magnesium acetate and nickel(I) sulfate are mixed in a well plate. Part B: Type of Reaction Part C: Write the net ionic equation

Breakdown Syn 2,4, 10,11,12 Comb: 5,20 Decomp: 7,8,9, 13,15,16 SR: 14,18, 22 ,23 ,24,25 DD: 1,3,17, 21, 26 Other: 6,19