Practice Formulas, Equations, and RXNS Test
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1 Page 1 Name: Practice Formulas, Equations, and RXNS Test Date: 1. 2 SO2(g) + O2(g) «2 SO3(g) What type of reaction is shown above? A) double replacement B) decomposition C) single replacement 2. Which equation is correctly balanced? A) Ca + Cl2 Ca2Cl B) H2 + O2 H2O C) Ca + Cl2 CaCl D) 2 H 2 + O 2 2 H 2 O 3. Given the incomplete equation: 4Fe + 3O2 2X Which compound is represented by X? A) Fe 2 O 3 B) Fe3O2 C) FeO D) Fe3O4 4. What is the chemical formula for sodium sulfate? 7. Given the reaction: Mg(s) + 2 AgNO3(aq) Mg(NO3)2(aq) + 2 Ag(s) Which type of reaction is represented? A) decomposition B) synthesis C) single replacement D) double replacement 8. Given the incomplete equation for the combustion of ethane: 2C2H6+ 7O2 4CO2 + 6 What is the formula of the missing product? A) H 2 O B) H2O2 C) HCOOH D) CH3OH 9. What is the chemical formula for copper(ii) hydroxide? A) Cu(OH) 2 B) CuOH2 C) Cu2(OH) D) CuOH A) NaSO4 B) NaSO3 C) Na 2 SO 4 D) Na2SO3 5. What is the IUPAC name for the compound FeS? A) iron(ii) sulfide B) iron(ii) sulfate C) Iron(III) sulfide D) iron(iii) sulfate 6. What is the chemical formula for iron(iii) oxide? A) Fe3O B) Fe3O2 C) Fe 2 O 3 D) FeO 10. What is the chemical formula for nickel (II) hypochlorite? A) Ni(ClO) 2 B) Ni(ClO)3 C) NiCl2 D) NiClO2 11. The chemical formula for nickel (II) bromide is A) N2Br B) NBr2 C) Ni2Br D) NiBr A balanced equation representing a chemical reaction can be written using A) chemical formulas and mass numbers B) chemical formulas and coefficients C) first ionization energies and mass numbers D) first ionization energies and coefficients
2 Page Given the unbalanced equation: 19. Which is the formula for the compound that forms when magnesium bonds with phosphorus? A) Mg2P3 B) Mg2P When the equation is correctly balanced using the smallest whole-number coefficients, the coefficient for H2O is C) MgP2 D) Mg 3 P Given the unbalanced equation: 14. Which formula represents strontium phosphate? A) Sr2(PO4)3 B) Sr 3 (PO 4 ) 2 C) SrPO4 D) Sr3PO8 When the equation is correctly balanced using the smallest whole-number coefficients, what is the coefficient of CO? 15. Which equation represents a decomposition reaction? A) 2H2(g) + O2(g) 2H2O(l) B) CaCO 3 (s) CaO(s) + CO 2 (g) C) KOH(aq) + HCl(aq) KCl(aq) + H2O(l) D) Cu(s) + 2AgNO3(aq) 2Ag(s) + Cu(NO3)2(aq) 16. The correct name for the compound NaClO3 is sodium A) chloride B) chlorite C) perchlorate D) chlorate 17. What is the formula of titanium(ii) oxide? A) TiO B) TiO2 C) Ti2O3 D) Ti2O 18. Given the balanced equation: 2 Na + 2 H2O 2 X + H2 What is the correct formula for the product represented by the letter X? A) NaOH B) NaO C) Na2OH D) Na2O
3 Page Given the unbalanced equation: When the equation is balanced using the smallest whole-number coefficients, what is the coefficient of Al? 22. What is the name of the polyatomic ion in the compound Na2O2? A) peroxide B) oxide C) hydroxide D) oxalate 23. Which formula represents copper(i) oxide? A) Cu 2 O B) CuO C) CuO2 D) Cu2O NH3(g) «N2(g) + 3 H2(g) What type of reaction is shown above? A) decomposition B) single replacement C) double replacement 24. A metal, M, forms an oxide compound with the general formula M2O. In which group on the Periodic Table could metal M be found? A) Group 2 B) Group 16 C) Group 1 D) Group Given the balanced equation representing a reaction: Which type of reaction is represented by this equation? A) double replacement B) single replacement C) decomposition 26. Which balanced equation represents a single-replacement reaction? A) MgCl2 + 2AgNO3 2AgCl + Mg(NO3)2 B) MgCO3 MgO + CO2 C) 2Mg + O2 2MgO D) Mg + 2AgNO 3 Mg(NO 3 ) 2 + 2Ag
4 Page Given the unbalanced equation: What is the coefficient of O2 when the equation is balanced correctly using the smallest whole number coefficients? 29. If an equation is balanced properly, both sides of the equation must have the same number of A) moles of molecules B) coefficients C) molecules D) atoms 30. Which two solutions, when mixed together, will undergo a double replacement reaction and form a white, solid substance? A) KCl(aq) and AgNO 3 (aq) B) NaNO3(aq) and AgNO3(aq) C) NaCl(aq) and LiNO3(aq) D) KCl(aq) and LiCl(aq)
5 Answer Key Practice Formulas, Names, Equations Page 5 1. D 2. D 3. A 4. C 5. A 6. C 7. C 8. A 9. A 10. A 11. D 12. B 13. B 14. B 15. B 16. D 17. A 18. A 19. D 20. C 21. B 22. A 23. A 24. C 25. B 26. D 27. A 28. C 29. D 30. A
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