TTU general Chemistry
Chem 1110 - thing 2: Atoms, Molecules, and also IonsPractice Quiz 51. Element phosphorus is developed from calcium phosphate in the following reaction. What is the coefficient for C once this equation is balanced with the smallest totality number coefficients?Ca3(PO4)2 + SiO2 + C ---> P4 + CO + CaSiO3a) 10b) 3c) 1d) 6e) 42. What is the amount of ALL coefficients as soon as the complying with equation is balanced, utilizing the smallest entirety number coefficients? carry out not forget coefficients of "one".Ag + H2S + O2 ---> Ag2S + H2Oa) 9b) 10c) 11d) 12e) 143. Identify the INCORRECT declare below:a) In the most fundamental sense, the nature of the facets are periodic functions of their atomic weight. b) The periodic legislation of the elements was an initial noted by Mendeleev and Meyer in the mid-1800"s. C) The upright columns the the periodic chart are called groups, sharing similar properties. D) facets with atomic numbers that 9, 17, 35, and 53 space members the the halogen family, meaning "salt formers." e) aspects Li, B, N and also F are all in the very same period. 4. I beg your pardon of the following types is potassium hypobromite?a) KBrO4b) KBrO2c) KBrO3d) KBrO5. I m sorry of the adhering to matched pairs of name and also formula has actually an error?a) SnBr2 is tin(II) bromideb) FeCl3 is ferric chloridec) Mn2O3 is manganese(II) oxided) CuS is copper(II) sulfide6. In 1977 a reasonably unstable oxoacid the nitrogen was prepared called pernitric acid. I m sorry of the adhering to would it is in the correct formula for pernitric acid?a) HNO2b) HNO3c) HNO5d) HNO4e) HNO7. I beg your pardon of the complying with compounds are named INCORRECTLY?a) NaClO2 / salt chloriteb) Fe2O3 / iron(III) oxidec) SO3 / sulfur trioxided) H2SO3 / sulfurous acide) HBrO4 / bromic acid8. Recognize the INCORRECT statement regarding the regular table. A) The properties of the aspects are periodic role of your atomic number.b) The periodic regulation was an initial noted by Mendeleev and also Meyer in the mid- 1800"s.c) elements with z = 2 and also 10 have similar properties.d) elements in horizontal rows have similar properties.e) The element magnesium is one alkaline planet metal.9. I m sorry ranking below gives aspects in the order MOST metallic to LEAST? a) F > C > Al > Na > Csb) Na > Cs > Al > C > Fc) Al > Na > Cs > F > Cd) Cs > Na > Al > C > FQUESTIONS #10-15: complement with the ideal answer. 10. High electrical conductivity 11. Great thermal insulation 12. Brittle in the heavy state 13. Often tend to shed electrons in creating compounds 14. Form covalently external inspection molecules with one one more 15. Space insulators at short T and also conductors in ~ high T a) metalsb) non-metalsc) metalloidsQUESTIONS #16-21: show which link are named CORRECTLY or INCORRECTLY. 16. Na2S = salt sulfate 17. H2SO3 = sulfurous mountain 18. NaOCl = salt hypochlorate 19. N2O5 = dinitrogen pentoxide 20. Cu2O = copper (II) oxide 21. HNO2 = nitrous acid a) CORRECTb) INCORRECT22. I beg your pardon of the complying with is one alkaline planet metal?a) Zrb) Snc) Cad) Lie)Th23. I beg your pardon element and group are NOT CORRECTLY matched?a) Sb/metalloidb) Kr/noble gasc) Al/alkali metald) F/halogene) Ca/alkaline planet metal24. I m sorry of the complying with matched pairs of name and also formula has an error?a) Mn2O3, manganese(II) oxideb) FeCl3, iron(III) chloridec) SnBr2, tin(II) bromided) CuS, copper(II) sulfidee) CrO, chromium(II) oxide25. I beg your pardon of the following matched pairs of name and also formula has actually an error?a) N2O4, dinitrogen tetroxideb) P4O6, phosphorus hexoxidec) OF2, oxygen difluorided) NO, nitrogen oxidee) Mn2O7, manganese(VII) oxide26. What is the correct surname for NH4ClO3?a) nitrogen chlorateb) tetraammonium trichloridec) nitrogen tetrahydro chlorine trioxided) tetraammonium chlorited) ammonium chlorate27.
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I m sorry of the following matched bag of name and formula has actually an error?a) H3PO4, phosphoric acidb) H2SO3, sulfurous acidc) HClO, hypochlorous acidd) HClO4, perchloric acide) HNO3, nitrous acid28. I m sorry of the following matched pairs of name and formula has actually an error?a) Al(NO2)3, aluminum nitrateb) BaSO3, barium sulfitec) Cr(SCN)3, chromium(III) thiocyanated) N2O3, dinitrogen trioxide e) P4O10, tetraphosphorus decoxide