Question

Stadent's Name Date 12/5/20 ) Who A) John Dalton B5 Antoine LavoisierC) Nivaldo Tro John Dalhono of the above 2) Who discovered the A) John Dalton E) none of the abovs B) Antoine Lavoisier C Niwaldo Tro D) John Dalson and Antoine Lavoisies cientific notation for the number 0.00050210 is A) 5.0210 104 )5.021 104 5021 1o D)S50210 10-4 ) none of the above 4) The standard St unit for temperature is A) Fahrenheit. B) Kelvin C) Celsius D atmospheres E) none of the above. 5) How many milliliters are in 17.5 17 A) 175 ) 1.75 102 C) 1.25 103 D) 1.75 101 E) none of the above 6) when methane is burned with oxyger, the products are ar hon dwuilenkiita you prdeenntui., water and 11 grams of carbon dioxide from 16 grams of oxygen, how many grams of methane were needed for the reaction? A) 4 B) 20 C) 31 D) 40 E) none of the above 7) In order, what is the freezing point, room temperature and boiling point of water according to thve Celsius scale? A) 32-75-212 B) 0-75-100 C) 0-25-100 D) 0-298-373 E none of the above 8) What is the value of 98 °F in units of C? A) 72 B) 37 C) 371 D) 22 E) none of the above 9) What is the atomic symbol for tin? A) Sn B) Ti D) Si E) none of the above 10) Group 7A elements are also called A) noble gases B) halogens. C) alkaline earth metals. D) alkali metals. E) none of the above 11) Cr is a member of which family? A) noble gases B) halogens C)alkaline earth metals D) alkali metals E) none of the above 12) What is the charge on the barium ion? B) 2- D) 2+ E) none of the above 13) What is correct name of the compound whose formula is BF3? ) boron trifluoride B)boron fluoride C) monoboron trifluorine D) boronll) fluoride E)none of the abow