Chapter 25 Student name 3147 Which of these elements is a liquid at room temperature 3148 Which of these elements is a solid at room temperature 3149 Which of these elements occupies a position on the periodic table that is not entirely consistent with its chemical properties 3150 Which of these elements is the most abundant in the universe A Hydrogen B Nitrogen C Bromine D Sulfur E Phosphorus A Hydrogen B Nitrogen C Bromine D Sulfur E Chlorine A H B He C Ar D Al E U A Hydrogen B Nitrogen C Carbon D Oxygen E Sodium 3151 Which of these is isoelectronic with the hydride ion 3152 Which of these hydrides is the most ionic A Hydrogen B Nitrogen C Carbon D Lithium E Helium A LiH B NaH C CH4 D NH3 E RbH 3153 What are the products of the reaction of strontium hydride and water SrH2 s H2O l A Sr2 aq H2 g O2 g B Sr2 aq H2 g OH aq C Sr s H2 g OH aq D Sr s H3O aq E Sr2 aq H aq What are the products of the reaction of potassium hydride and water 3154 KH s H2O l A K s H2 g OH aq B K s H2 g O2 g C KOH s O2 g D K aq H2 g O2 g E K aq H2 g OH aq 3155 Hydrogen forms metallic interstitial hydrides with the d and f transition elements Which of the following statements is correct A These substances have distinct stoichiometric formulas like ionic hydrides B Hydrogen forms bonds with the metals by donating its electron to the valence band of the metal C Hydrogen molecules and atoms occupy holes within the crystal structure of the metal D These substances are poor catalysts E These hydrides are stabilized by hydrogen bonding forces 3156 Which of the following is not an isotope of hydrogen A Deuterium B Tritium C Hydronium D All of these are isotopes of hydrogen 3157 Which of these substances is being considered as a replacement fuel for gasoline A D2O B H2 C NO2 D F2 E He 3158 What process involves the addition of a hydrogen molecule to compounds containing multiple bonds A Hydration B Alkanation C Hydrogenation D Esterification E Coagulation 3159 Which of these species is not an acidic oxide 3160 Carbon combines with metals to form which of the following ionic compounds A Organo metal complex ions B Carbides C Carbonates D Oxides E Carbon cannot bond to metals 3161 What is one chemical formula of the carbide ion A P4O10 B P4O6 C SO3 D CO E SiO2 A Si4 B C2 2 C C2 D CN E C3 3162 The term catenation describes the tendency of carbon atoms to form cations in the presence of alkali metals A B process of creating synthetic gas from coal C extraction of precious metals with sodium or potassium cyanide D ability of carbon atoms to form long chains and rings E interaction of Group 4A elements with Group 8A elements at high pressures and temperatures to form coordination compounds 3163 One important feature of the chemistry of carbon is A B C D E its large radius that allows other atoms to fit easily around it its low electronegativity that allows it to ionize easily its amphoteric behavior its ability to form multiple bonds with hydrogen its ability to catenate 3164 Silicon carbide is an important industrial chemical Which of the following statements about silicon carbide is true It will react with water to form acetylene It is used in the preparation of glass which can be used at high temperature It is the hardest known substance A B C D It is a naturally occurring mineral source of silicon E It is used for cutting grinding and polishing metals and glasses 3165 Air is made up of approximately 80 of which of the following A Hydrogen B Nitrogen C Carbon D Oxygen E Helium 3166 Which of the following elements is essential to life because it is a component of proteins A a brown poisonous gas that is one of the chemicals involved in the production of photochemical smog B a colorless gas used in the production of nitric acid C a gas that supports combustion D an allotrope of nitrogen E a paramagnetic gas toxic because it results in an increase in the production of ATP toxic because it binds to the sulfhydryl group in proteins and enzymes A an essential element in the human body B C D used in high concentrations in ancient cosmetics E None of these choices is correct and nucleic acids A Phosphorus B Sulfur C Chlorine D Bromine E Nitrogen 3167 Nitrous oxide N2O is 3168 Arsenic As is 3169 The nitrate anion is A a strong acid B a strong base C amphoteric D a strong reducing agent E a strong oxidizing agent 3170 Which of the following has the most allotropes A Carbon B Sulfur C Oxygen D Selenium E Nitrogen oxygen 3171 Which of the following is an accurate comparison of the properties of nitrogen and A Both oxygen and nitrogen form anions easily B Oxygen is a strong oxidizing agent while nitrogen is a strong reducing agent C Nitrogen uses more oxidation states in its compounds than oxygen does D Nitrogen is more reactive than oxygen E Nitrogen does not form naturally occurring compounds but oxygen does 3172 Sulfur hexafluoride SF6 is A a reactive gas that decomposes when exposed to moisture B a reactive gas used to fluorinate organic compounds C an inert gas that is used as an electrical insulator D a reactant in the process of manufacturing non stick coatings E used in the manufacture of sulfuric acid 3173 Hydrogen peroxide H2O2 is A a strong reducing agent B used as a drying agent C a colored liquid with a low boiling point D a strong acid E a component of rocket fuel 3174 Which oxide is an amphoteric oxide A Na2O B Al2O3 C BaO D SiO2 E More that one of these oxides is amphoteric 3175 The chemical that ranks first in production among all industrial chemicals is 3176 Which of the following is not a product of the reaction of zinc metal with nitric acid 3177 Which of the following elements can be oxidized by nitric acid to form its corresponding 3178 Which of the following compounds is not a common phosphorus containing oxoacid 3179 Which of the following is a commercial application of phosphate compounds A NH3 ammonia B H3PO4 phosphoric acid C NaOH sodium hydroxide D Na2CO3 sodium carbonate E H2SO4 sulfuric acid A NH4 B H2O C H2 D Zn2 E All of the species are products oxoacid A Sulfur B Gold C Phosphorus D Both Sulphur and Phosphorus E Both Sulphur and Gold A H3PO4 B H5P3O10 C H3PO3 D H3PO2 E H3P2O7 A Detergents B Toothpaste C Fertilizers D Flame retardants E All of the answers are correct 3180 In their elemental forms the halogens are A strong oxidizing agents B strong reducing agents C strong acids D strong bases …