Question

Page 10 of 12 BA 25.3 An Introduction to Chemical Reactions 4. In the reactions shown below, circle the reactant(s) and underline the product(s). 2 Na(s)+CL(g) 2 NaCl(s) а. b. CaCOs(s) CaO(s) +CO:(g) Cu(NOs)(aq)+ 2 NAHCO (s) CUCO:(s)+2 NANO, (aq) + H&Ol) + CO:(g) с. Here are some descriptions of chemical reactions. Read the description, and then answer the questions. 5. Metallic iron and solid sulfur react to form iron (II) sulfide. a. 1. Write the symbols of the reactants. 2. Write the symbol of the product. 3. Write a balanced equation for the reaction. to an agueous solution of

Answer 1

soluis 2NA CICS) Co) . Ad t + Ct đ) Reactants: Nors) and leg) Product: Nalls i (b) Cacogs) A Cao es? + CO2cg) Regetoutt: CaCO365) Product: Caors) + coreg) Culog (5)+ 2NG NO369.7 + (c) Cu (NO3)2,2m.) +2 NQHC036) - HO (+202c9) Reacteunt : Cu(NO3)2(04.) and NaHCO3(s) Produck: CuC0309) · MA NO3C98.), H20 (19 and 20:49) sol"-5 a Metallic iron and solid salphur react to form iron 1) sulphide. I. fees) and Ses) 2. Feless 3. fecut sesi feses) bo sodium hydro xidle is dissolved in water and this solution is added to an aqueous solution of magnesium chloride to form solid magnesium hydroxide which precipitates out of solution The other product sodium chloride which stays in solution. ENEWZEYEVENTY

1. 2. Noolag.) and mg clz (elle) mgrou)26) and Naucalp. 2N1904 out ang U241. Coss ta rcg) Cong) (16) + O2(g) concg) mg (H) 2 () + 2NGU d. 1. NaCO3 (as) and he sou cas) . 2. coreg) and MO (l) Na₂SO4 cas. 3. NaCO3 cas.) + H, 50 499) Na SoulC.)HjOvest CO269) solu. 6 a. Metallic sodium react with chlorine gas - to form sodium chloride. bi Dissociation of gives solid Solid calerem Calcium carbonate Oxicle and carbon . dio kide gas. C Aquecus copperl) witrate audl reacts with eachother and carbonate , so diem nitrate and carbondioxide as sodium bicarbonate gives copper (1) liquid water product.