Chemistry

Replies / Views	Last post
The ozone layer over Antarctica is its largest in A) September. B) January. C) May. D) ... Started by 09madisonrousseau09	3 Replies 59 Views	Aug 27, 2018 by JYan
Why is it important to use dry tubes for the reactions involving sodium iodide in ... Started by 09madisonrousseau09	3 Replies 168 Views	Aug 23, 2018 by sierrahalpin
If the pKa of isopropyl alcohol is 17, what is the Ka of isopropyl alcohol? A) 17 1017 B) 1017 ... Started by 09madisonrousseau09	1 Replies 93 Views	Aug 23, 2018 by cdmart10
Which fifth period representative element has the highest atomic number? A) Bi B) Cd C) Sr D) ... Started by 09madisonrousseau09	1 Replies 64 Views	Aug 27, 2018 by covalentbond
How many grams of ammonia are consumed if 45.0 g of NO are formed in a 100 yield? NH3 + O2 NO + ... Started by 123654777	1 Replies 26 Views	Aug 27, 2018 by nanny
If 75.0 g of water at 30.0C absorbs 900 calories, the new temperature will be A) 18.0C. B) ... Started by 123654777	1 Replies 31 Views	Aug 27, 2018 by Sierray
Hydrocarbons with a carbon-carbon double bond are known as ________. A) alkanes B) alkenes C) ... Started by 123654777	1 Replies 51 Views	Aug 27, 2018 by Tabitha_2016
The IUPAC name for the alkane shown below is ________.CH3\| CH3CHCH2CH2CH2CH3 Started by 123654777	1 Replies 229 Views	Feb 15, 2020 by yifu223
Proton acceptor is an abbreviated definition of: Started by 123654777	1 Replies 11 Views	Jul 8, 2021 by Danny Ewald
Why would a chain-reaction control substance that loses neutron-absorbing power as its temperature ... Started by 123654777	1 Replies 55 Views	Aug 27, 2018 by paavo
Which of the following equilibria represents the second ionization step of H3PO4? Started by 123654777	1 Replies 99 Views	Nov 18, 2019 by vboyd24
Which of the following statements is true concerning the electrochemical cell depicted below?Mg \| ... Started by 123654777	1 Replies 42 Views	Mar 21, 2021 by karmakat49
How many millilitres of 0.200 mol L-1 FeCl3(aq) are needed to react with an excess of Na2S(aq) to ... Started by 123654777	1 Replies 33 Views	Jul 8, 2021 by jxjsniuniu
Calculate the activation energy, Ea, for a reaction with a frequency factor, A, of 9.3 1010 s-1 and ... Started by 123654777	7 Replies 597 Views	Jun 30, 2022 by Alisha Sasha
The gap between two brain cells is 2.0 10-3 nm. How many meters is this? A) 2.0 10-12 m B) 2.0 ... Started by 123654777	1 Replies 168 Views	Aug 27, 2018 by mtmmmmmk
What is the chemical formula for cesium bicarbonate? Started by 123654777	1 Replies 32 Views	Feb 15, 2020 by Kimmy
Which process releases energy? A) bond formation B) bond breaking C) both A and B D) none of ... Started by 123654777	1 Replies 60 Views	Aug 27, 2018 by snackralk
How many grams of H3PO4 are in 265 mL of a 1.50 mol L-1 solution of H3PO4? Started by 123654777	2 Replies 248 Views	Feb 23, 2020 by Olivier Edouard
Calculate the molality of a 35.0 (by mass) aqueous solution of nitric acid. A) 6.64 B) 538 C) ... Started by 123654777	1 Replies 113 Views	Aug 27, 2018 by zogaridan
Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The ... Started by 123654777	3 Replies 48 Views	Aug 27, 2018 by nyrave
How many molecules of XeF6 are formed from 12.9 L of F2 (at 298 K and 2.635 bar) according to the ... Started by 123654777	1 Replies 31 Views	Nov 18, 2019 by blfontai
A device that generates an electrical current by taking advantage of a difference in the spontaneous ... Started by 123654777	1 Replies 28 Views	Aug 27, 2018 by isabelt_18
Electromagnetic radiation with a wavelength of 531 nm appears as green light to the human eye. The ... Started by 123654777	1 Replies 27 Views	Jul 8, 2021 by efwsefaw
How many moles of hydrogen sulfide are contained in a 39.3-g sample of this gas? Started by 123654777	1 Replies 49 Views	Mar 21, 2021 by dantucker
This element reacts with hydrogen to produce a gas with the formula HX. When dissolved in water, HX ... Started by 123654777	1 Replies 43 Views	Aug 27, 2018 by nguyenhoanhat