Chemistry

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The carbonate ( )/bicarbonate ( ) pair represents a base and its conjugate acid. Indicate whether ... Started by ENagel	1 Replies 42 Views	Aug 27, 2018 by frogdreck123456
One mole of methane has approximately the same mass as half a mole of oxygen gas. Indicate ... Started by humphriesbr@me.com	1 Replies 48 Views	Aug 27, 2018 by shoemake
How many electrons are there in a Sb atom? A) 51 B) 122 C) 71 D) ... Started by laurencescou	1 Replies 9 Views	Aug 27, 2018 by kmb352
One mole of carbon monoxide has the same mass as one mole of nitrogen gas. Indicate whether the ... Started by stephzh	3 Replies 54 Views	Aug 27, 2018 by mcabuhat
The model for the atom which has electrons in fixed orbits was developed by A) Rutherford. B) ... Started by Yolanda	1 Replies 22 Views	Aug 27, 2018 by chjcharjto14
The number of molecules of a certain mass of any compound is always higher than the number of moles ... Started by jenna1	1 Replies 35 Views	Aug 27, 2018 by stallen
When an electron moves from the ground state to the excited state, it A) absorbs energy and moves ... Started by jlmhmf	1 Replies 43 Views	Aug 27, 2018 by blfontai
The number of atoms of a certain mass of any compound may be lower than the number of molecules of ... Started by Pineapplelove6	3 Replies 22 Views	Aug 27, 2018 by josephsuarez
In the quantum mechanical view of the atom, electrons are confined to charge clouds called A) ... Started by madam-professor	1 Replies 18 Views	Aug 27, 2018 by af
The number of atoms in one formula unit of (NH4)2Cr2O7 is 17. Indicate whether the statement is ... Started by fasfsadfdsfa	1 Replies 35 Views	Aug 27, 2018 by reversalruiz
HPO42- is the conjugate base of H2PO4-. Indicate whether the statement is true or ... Started by tsand2	1 Replies 21 Views	Aug 27, 2018 by jgranad15
A covalent bond is weaker than a hydrogen bond. Indicate whether the statement is true or ... Started by chandani	3 Replies 84 Views	Aug 27, 2018 by deja
What were the three main defining characteristics of acids, according to the alchemists? What ... Started by MGLQZ	1 Replies 19 Views	Aug 27, 2018 by Andromeda18
The designations s, p, d, f designate A) different electron energy levels. B) different electron ... Started by magmichele12	1 Replies 9 Views	Aug 27, 2018 by momolu
What were the defining characteristics of bases as known to the alchemists? What will be an ideal ... Started by mynx	1 Replies 14 Views	Aug 27, 2018 by ndhahbi
(NH4)4Fe(CNO)6 has 36 atoms per formula unit. Indicate whether the statement is true or ... Started by bclement10	3 Replies 132 Views	Aug 27, 2018 by Briannahope
The ground state electron configuration for sodium is A) 1s2 2s2 2p6 3s2 3p4. B) 1s2 2s2 2p6 ... Started by ETearle	1 Replies 44 Views	Aug 27, 2018 by bookworm410
26 g of aluminum have the same number of atoms as 26 g of iron. Indicate whether the statement is ... Started by jman1234	1 Replies 21 Views	Aug 27, 2018 by heyhey123
The element with the ground state electron configuration of 1s2 2s2 2p6 3s2 is A) Mg. B) Ca. C) ... Started by casperchen82	1 Replies 138 Views	Aug 27, 2018 by shaquita
18 g of water have the same number of atoms as 48 g of ozone. Indicate whether the statement is ... Started by penguins	3 Replies 43 Views	Aug 27, 2018 by bookworm410
One mole of hydrogen gas has 6.02 x 1023 atoms Indicate whether the statement is true or ... Started by hubes95	1 Replies 57 Views	Aug 27, 2018 by ally
One mole of ozone, O3, has 1.8 x 1024 atoms. Indicate whether the statement is true or ... Started by jessicacav	1 Replies 55 Views	Aug 27, 2018 by emily12345
Heavy water is ________. A) water that contains cations such as magnesium, ferric and calcium ... Started by joesmith1212	1 Replies 36 Views	Aug 27, 2018 by yeungji
If the temperature of a gas is lowered, the gas molecules will strike the walls of its container ... Started by Mr.Thesaxman	3 Replies 21 Views	Aug 27, 2018 by owenfalvey
Which of the following particles has a mass number of 1? A) proton B) neutron C) helium D) ... Started by big1devin	1 Replies 28 Views	Aug 27, 2018 by jharrington11