Chemistry

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The entropy change accompanying any process is given by the equation: A) S = k lnWfinal B) S = k ... Started by leilurhhh	1 Replies 63 Views	Aug 27, 2018 by xMRAZ
The reaction of a metal with a nonmetal produces a(n) ________. A) base B) salt C) acid D) ... Started by OSWALD	3 Replies 160 Views	Aug 27, 2018 by tofugiraffe
The H for the solution process when solid sodium hydroxide dissolves in water is 44.4 kJ/mol. When a ... Started by nelaaney	1 Replies 149 Views	Aug 27, 2018 by pallen55
The correct name for HNO3 is ________. A) nitrous acid B) nitric acid C) hydronitroxide acid ... Started by captainjonesify	1 Replies 234 Views	Aug 27, 2018 by popopong
S is positive for the reaction ________. A) 2H2 (g) + O2 (g) 2H2O (g) B) 2NO2 (g) N2O4 (g) C) ... Started by DelorasTo	1 Replies 157 Views	Aug 27, 2018 by akpaschal
Gases do not have a fixed ________ as they are able to be ________. Fill in the blank(s) with ... Started by Anajune7	3 Replies 102 Views	Aug 27, 2018 by connor417
Which nonmetal exists as a diatomic solid? A) bromine B) antimony C) phosphorus D) iodine E) ... Started by ENagel	1 Replies 79 Views	Aug 27, 2018 by brittrenee
A 50.0-g sample of liquid water at 25.0 C is mixed with 23.0 g of water at 79.0 C. The final ... Started by storky111	1 Replies 163 Views	Aug 27, 2018 by 6ana001
The correct name for HClO3 is ________. A) hydrochloric acid B) perchloric acid C) chloric acid ... Started by silviawilliams41	1 Replies 131 Views	Aug 27, 2018 by srodz
In the smectic A liquid-crystalline phase, ________. A) the molecules are aligned along their ... Started by piesebel	3 Replies 99 Views	Aug 27, 2018 by joshraies
RU-486 is a drug that blocks the action of progesterone and A) prevents pregnancy. B) ends ... Started by bio_gurl	1 Replies 84 Views	Aug 27, 2018 by Chocorrol77
A disproportionation reaction is one in which ________. A) a single element is both oxidized and ... Started by debasdf	1 Replies 101 Views	Aug 27, 2018 by Briannahope
The oxidation state of oxygen in OF2 is ________. A) +1 B) +2 C) 0 D) -1 E) ... Started by joe	1 Replies 75 Views	Aug 27, 2018 by LVPMS
The temperature of a 24.3 g sample of gold increases from 23.7 C to 31.5 C. If the specific heat of ... Started by NClaborn	3 Replies 167 Views	Aug 27, 2018 by juiceman1987
The most common and stable allotrope of sulfur is ________. A) S B) S2 C) S4 D) S8 E) Sulfur ... Started by rl	1 Replies 209 Views	Aug 27, 2018 by Edwyer
The first commercially available female contraceptive drug was approved by the FDA in A) 1935. ... Started by B	1 Replies 58 Views	Aug 27, 2018 by SomethingSomething
What is the enthalpy change (in kJ) of a chemical reaction that raises the temperature of 250.0 mL ... Started by nevelica	1 Replies 93 Views	Aug 27, 2018 by izzat
The electron-domain geometry of a sulfur-centered compound is trigonal bipyramidal. The ... Started by Wadzanai	3 Replies 100 Views	Aug 27, 2018 by anoriega3
Which group 6A element is a metal? A) tellurium and polonium B) sulfur C) selenium D) ... Started by sc00by25	1 Replies 65 Views	Aug 27, 2018 by debra928
Calculate the pH of a solution that is 0.322 M in nitrous acid (HNO2 ) and 0.178 M in potassium ... Started by Caiter2013	1 Replies 147 Views	Aug 27, 2018 by karlss
Which of the following statements about how ECPs and RU-486 work is most correct? A) Both ECPs ... Started by viki	1 Replies 86 Views	Aug 27, 2018 by Zack0mack0101@yahoo.com
Sn is the symbol for the element ________. Fill in the blank(s) with correct ... Started by mwit1967	3 Replies 173 Views	Aug 27, 2018 by xMRAZ
The reaction 2NOBr (g) 2 NO (g) + Br2 (g) is a second-order reaction with a rate constant of ... Started by Starlight	1 Replies 323 Views	Aug 27, 2018 by katieost
Amphoteric oxides are also known as ________. A) basic oxides B) basic anhydrides C) acidic ... Started by rosent76	1 Replies 163 Views	Aug 27, 2018 by AISCAMPING
The correct name for HBrO2 is ________. A) hydrobromic acid B) perbromic acid C) bromic acid ... Started by stephzh	1 Replies 134 Views	Aug 27, 2018 by bblaney