Chemistry

Replies / Views	Last post
Calculate the mass, in g, of 1.9 1024 atoms of Pb. A) 3.9 102 g B) 2.4 102 g C) 3.2 102 g ... Started by bcretired	3 Replies 115 Views	Aug 27, 2018 by Edwyer
A 0.465 g sample of an unknown compound occupies 245 mL at 298 K and 1.22 atm. What is the molar ... Started by MirandaLo	1 Replies 100 Views	Aug 27, 2018 by ambernicolefink
How many valence electrons does an atom of Cu possess? A) 2 B) 9 C) 11 D) 3 E) ... Started by future617RT	1 Replies 108 Views	Aug 27, 2018 by mcni194
A compound is found to be 30.45 N and 69.55 O by mass. If 1.63 g of this compound occupy 389 mL at ... Started by torybrooks	1 Replies 137 Views	Aug 27, 2018 by Dinolord
How many valence electrons does an atom of Al possess? A) 1 B) 2 C) 5 D) 3 E) ... Started by tsand2	3 Replies 193 Views	Aug 27, 2018 by Meganchabluk
What is the mole fraction of CO in a container with a H2 mole fraction of 0.22 and an O2 mole ... Started by jjjetplane	1 Replies 184 Views	Aug 27, 2018 by heyhey123
How many molecules are contained in 25.0 mL of butane? The density of butane is 0.6011 g/mL and the ... Started by bucstennis@aim.com	1 Replies 142 Views	Aug 27, 2018 by scikid
How many valence electrons do the halogens possess? A) 5 B) 6 C) 2 D) 1 E) ... Started by rosent76	1 Replies 92 Views	Aug 27, 2018 by mistyjohnson
Determine the molecular formula of a compound that has a molar mass of 183.2 g/mol and an empirical ... Started by crobinson2013	3 Replies 177 Views	Aug 27, 2018 by lorealeza77
Predict the charge for the most stable ion of nitrogen. A) -3 B) -2 C) 1 D) 0 E) ... Started by eruditmonkey@yahoo.com	1 Replies 108 Views	Aug 27, 2018 by heyhey123
A mixture of 0.220 moles CO, 0.350 moles H2 and 0.640 moles He has a total pressure of 2.95 atm. ... Started by CBme	1 Replies 382 Views	Aug 27, 2018 by SeanoH09
Are anions typically larger or smaller than their corresponding atom? Why? What will be an ideal ... Started by MirandaLo	1 Replies 135 Views	Aug 27, 2018 by welcom1000
Place the following elements in order of decreasing atomic radius. Xe Rb Ar A) Ar > Xe > Rb ... Started by ereecah	3 Replies 131 Views	Aug 27, 2018 by ms_sulzle
What symbol is used to represent the factor 10-1? A) M B) m C) D) ... Started by Destiiny22	1 Replies 139 Views	Aug 27, 2018 by fraziera112
A gas sample contains 0.33 atm of Ne, 0.45 atm of Ar, and 0.32 atm of CO. What is the total ... Started by cabate	1 Replies 67 Views	Aug 27, 2018 by Bison
Place the following in order of increasing atomic radius. As O Br A) As < Br < O B) O < ... Started by chandani	1 Replies 92 Views	Aug 27, 2018 by bigsis44
The factor 10-3 corresponds to which prefix? A) deka B) deci C) milli D) ... Started by mspears3	3 Replies 244 Views	Aug 27, 2018 by mammy1697
Place the following in order of increasing radius. Br Na+ Rb+ A) Br < Rb < Na B) Na < ... Started by Mr3Hunna	1 Replies 138 Views	Aug 27, 2018 by coyin
Write a balanced equation to show the reaction of sulfurous acid with lithium hydroxide to form ... Started by Zoey63294	1 Replies 181 Views	Aug 27, 2018 by Ddddd
What decimal power does the abbreviation pico represent? A) 1 106 B) 1 109 C) 1 10-1 D) ... Started by lidoalex	1 Replies 85 Views	Aug 27, 2018 by EAN94
Place the following in order of decreasing radius. Te2 F O2 A) F > O2 > Te2 B) F > Te2 ... Started by sammy	3 Replies 1,771 Views	Aug 27, 2018 by epscape
What is the volume (in cm3 ) of a 43.6 g piece of metal with a density of 2.71 g/cm3? A) 16.1 B) ... Started by RODY.ELKHALIL	1 Replies 118 Views	Aug 27, 2018 by stillxalice
A syringe contains 589 mL of CO at 325 K and 1.2 atm pressure. A second syringe contains 473 mL of ... Started by EAugust	1 Replies 165 Views	Aug 27, 2018 by Madisongo23
A piece of metal ore weighs 8.25 g. When a student places it into a graduated cylinder containing ... Started by cdr_15	1 Replies 121 Views	Aug 27, 2018 by tsternbergh47
Identify the principal component of natural gas. A) propane B) ethane C) n-butane D) methane ... Started by rmenurse	3 Replies 123 Views	Aug 27, 2018 by cegalasso