Chemistry

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Metals can be ________ at room temperature. A) liquid only B) solid only C) solid or liquid D) ... Started by kodithompson	1 Replies 108 Views	Aug 27, 2018 by paavo
Which of the following has the same number of significant figures as the number 0.0050? A) 0.9 ... Started by schs14	3 Replies 222 Views	Aug 27, 2018 by Missbam101
Oxygen forms an ion with a charge of ________. A) 2- B) 2+ C) 3- D) 3+ E) ... Started by D2AR0N	1 Replies 138 Views	Aug 27, 2018 by Bison
How many Significant Figures does the number 0.005000 have? A) 4 B) 5 C) 1 D) 2 E) ... Started by craiczarry	1 Replies 73 Views	Aug 27, 2018 by kaykay69
A reaction that is spontaneous as written ________. A) is very rapid B) will proceed without ... Started by jilianpiloj	1 Replies 138 Views	Aug 27, 2018 by katieost
The substance with the largest heat of vaporization is ________. A) I2 B) Br2 C) Cl2 D) F2 E) ... Started by jlmhmf	3 Replies 67 Views	Aug 27, 2018 by allisonblackmore
The number 0.0101 has ________ significant figures. A) 2 B) 3 C) 5 D) 4 E) ... Started by Sufayan.ah	1 Replies 64 Views	Aug 27, 2018 by gasdhashg
Of the following compounds, which is the most stable? A) XeF6 B) XeOF4 C) XeO3 D) XeO2F2 E) ... Started by jenna1	1 Replies 96 Views	Aug 27, 2018 by al
Na reacts with element X to form an ionic compound with the formula Na3X. Ca will react with X to ... Started by student77	1 Replies 156 Views	Aug 27, 2018 by sarahccccc
The order of MO energies in B2, C2, and N2 (2p > 2p), is different from the order in O2, F2, and ... Started by Pineappleeh	3 Replies 72 Views	Aug 27, 2018 by kingdude89
Ca reacts with element X to form an ionic compound with the formula CaX. Al will react with X to ... Started by javeds	1 Replies 956 Views	Aug 27, 2018 by braelync
A sample of aluminum metal absorbs 11.2 J of heat, upon which the temperature of the sample ... Started by joesmith1212	1 Replies 117 Views	Aug 27, 2018 by ansleighelindsey
Consider the following xenon compounds: (i) XeF2 (ii) XeF4 (iii) XeO4 (iv) XeOF4 (v) XeO3 Which of ... Started by krzymel	1 Replies 120 Views	Aug 27, 2018 by hanadaa
For a molecule with the formula AB2, the molecular shape is ________. A) linear or bent B) ... Started by erika	3 Replies 154 Views	Aug 27, 2018 by sarajane1989
Round the number 0.00637 to two significant figures. A) 0.0064 B) 0.006 C) 0.00637 D) 0.0 E) ... Started by mpobi80	1 Replies 80 Views	Aug 27, 2018 by bookworm410
The pH of a solution prepared by mixing 40.0 mL of 0.125 M Mg(OH)2 and 150.0 mL of 0.125 M HCl is ... Started by nevelica	1 Replies 89 Views	Aug 27, 2018 by djofnc
A reversible process is one that ________. A) can be reversed with no net change in either system ... Started by Cooldude101	1 Replies 106 Views	Aug 27, 2018 by xMRAZ
The heavier noble gases are more reactive than the lighter ones because ________. A) the lighter ... Started by EAugust	3 Replies 113 Views	Aug 27, 2018 by missalyssa26
Sulfur and oxygen react in a combination reaction to produce sulfur trioxide, an environmental ... Started by K@	1 Replies 152 Views	Aug 27, 2018 by vickybb89
Predict the empirical formula of the ionic compound that forms from magnesium and oxygen. A) Mg2O ... Started by deesands	1 Replies 219 Views	Aug 27, 2018 by meganmoser117
In general, the vapor pressure of a substance increases as ________ increases. A) surface tension ... Started by cnetterville	3 Replies 107 Views	Aug 27, 2018 by Sammyo
Oxides of the active metals combine with acid to form ________. A) hydrogen gas B) metal ... Started by dalyningkenk	1 Replies 117 Views	Aug 27, 2018 by xoxo123
The combustion of ethylene proceeds by the reaction C2H4 (g) + 3O2 (g) 2CO2 (g) + 2H2O (g) When the ... Started by rlane42	1 Replies 101 Views	Aug 27, 2018 by chjcharjto14
An 6.11 g sample of calcium carbonate CaCO3 (s) absorbs 84 J of heat, upon which the temperature of ... Started by jwb375	1 Replies 81 Views	Aug 27, 2018 by jomama
The nitrogen mustard used in drug therapy is A) HN1. B) HN2. C) Cytoxan. D) ... Started by Arii_bell	3 Replies 42 Views	Aug 27, 2018 by Ksanderson1296