Five chemical reactions are listed in the table below. Reaction 1 CaCO3 - Cao + CO2 Reaction 2 Ca(OH)2 + 2HCI – CaCl2 + 2H20 Reaction 3 NH3 + HCI - NHẠCI PbO2 - Pb + 02 2Mg + O2 – 2Mgo Reaction 4 Reaction 5 Identify any decomposition reaction(s) shown in the table. A Reaction 1 B Reaction 2 C Reaction 3 D Reaction 4 E Reaction 5

O Kf will change depending on what solute is dissolved in the solvent. QUESTION 11 Which term can be used to describe the process in the reaction below? 2 NaHCO3 (s) Na2CO3 (s) + H2O (g) + CO2 (g) Dissociation Precipitation Hydration Decomposition QUESTION 12 Which of the following would NOT be considered valid sources of error in a laboratory experiment? Click Save and Submit to save and submit. Cick Suve All Answers to save all ansicers

Do not give handwriting solution.

Two students are studying the Arrhenius reaction below: NAOH + Hz S04 acid → Na SOy + HzO base salt water Did the students identify the acid, base and salt correctly? If not, provide the correction.

Classify each chemical reaction: Reaction Ba (C1O3)₂ (s) → BaCl₂ (s) + 30₂ (g) 2 2Crl₂(aq) + 3Pb (NO3)₂ (aq) → 2Cr(NO3), (aq) + 3PbI₂ (s) 2 2Al(s) + 3ZnBr₂ (aq) 2A1Br, (aq) + 3Zn(s) Type choose one choose one choose one ↑ ŵ ↑

16)what type of reaction is this generic equation  AB+CD=AD+CB single displacement  decomposition combination. double displacement

Classify each chemical reaction: Reaction 2Al(s) + 3ZnBr₂ (aq) → 2A1Br₂ (aq) + 3Zn (s) 2CrI₂(aq) + 3Pb(NO3)₂(aq) → 2Cr(NO3)₂(aq) + 3PbI₂ (s) Ca(s) + Br₂ (1) CaBr₂ (s) 2NaClO₂ (s) → 2NaCl(s) + 30₂ (g) Type choose one choose one choose one choose one X Ś

Complete the following table, making sure to include your units! Concentration of Concentration of acetic acid Water level on measuring cylinder before reaction 98 mL 91 mL 95 mL 0.5% 0.2% 0.1% ● sodium bicarbonate 0.5 M 0.5 M 0.5 M From the results above, which reactant do you consider to be the limiting reagent? Why? ● Water level on measuring cylinder after reaction 8 mL 49 mL 81 mL Consider the reaction where the concentration of acetic acid was 0.5% and the concentration of sodium bicarbonate was 0.5 M. Complete the table on page 5 to calculate the theoretical yield of CO2 with these concentrations. The following bullet points may help: You have already calculated the amount of sodium bicarbonate in 100 mL In a 100 mL solution of acetic acid at 0.1% there will be 0.1 mL of acetic acid. ● Volume of gas produced The density of acetic acid is 1.05 g/mL. You can use this value to calculate the mass of acetic acid used in the reaction.

Which reaction is NOT an example of a decomposition reaction? Select one: O H¿CO3 → → H2O + CO2 O CuCl2 → Cu + Cl2 О 2 РЫ(NO3)2 — 2 РЬО + 4NO, + O2 CaO + CO2 CACO3

A+BCà B+ AC is called a single replacement  reaction.  True  False