Chemistry

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The peptide bond joining amino acids into proteins is a specific example of the ________ bond. A) ... Started by awywial	3 Replies 291 Views	Aug 27, 2018 by coreycathey
If A contains 2 NaCl and is separated by a semipermeable membrane from B which contains 10 NaCl, ... Started by bcretired	1 Replies 105 Views	Aug 27, 2018 by shoemake
The passage of a solvent across a semipermeable membrane because of concentration differences is ... Started by jho37	1 Replies 76 Views	Aug 27, 2018 by brbarasa
For the isotope 71Ga, Z = ________ and A = ________. A) 31; 40 B) 71; 31 C) 71; 40 D) 31; 71 ... Started by Sportsfan2111	1 Replies 41 Views	Aug 27, 2018 by vickyvicksss
The mass number of Br-81 is ________. A) 81 B) 79.904 C) 79 D) 46 E) ... Started by melly21297	3 Replies 63 Views	Aug 27, 2018 by harveenkau8139
How many neutrons does an atom of Ti have? A) 0 B) 22 C) 24 D) 46 E) ... Started by biggirl4568	1 Replies 58 Views	Aug 27, 2018 by Bigfoot1984
The compound CS2 is named carbon disulfide. Indicate whether the statement is true or ... Started by Lobcity	1 Replies 92 Views	Aug 27, 2018 by xiazhe
Atoms of Cl contain ________ protons and ________ electrons. A) 17; 17 B) 17; 18 C) 18; 17 D) ... Started by javeds	1 Replies 90 Views	Aug 27, 2018 by aloop
An atom with a mass number of 58 and with 32 neutrons will have ________ protons. A) 16 B) 26 ... Started by james0929	3 Replies 97 Views	Aug 27, 2018 by Kingjoffery
Which category of amino acid contains R groups that are hydrophobic? A) polar B) non-polar C) ... Started by Zoey63294	1 Replies 120 Views	Aug 27, 2018 by Kdiggy
When vaporized into steam water molecules decompose into hydrogen and oxygen molecules. Indicate ... Started by go.lag	1 Replies 415 Views	Aug 27, 2018 by hramirez205
Non-polar R groups on amino acids are said to be ________ because they are not attracted to water ... Started by burton19126	1 Replies 134 Views	Aug 27, 2018 by blakcmamba
Polar R groups, along with acidic and basic R groups, are said to be ________ because they are ... Started by B	3 Replies 252 Views	Aug 27, 2018 by scrocafella
Ions that may be named with -ous and -ic suffixes have only two stable ions. Indicate whether the ... Started by vicotolentino	1 Replies 656 Views	Aug 27, 2018 by aburgess
The negatively charged species is written first when writing a formula. Indicate whether the ... Started by big1devin	1 Replies 174 Views	Aug 27, 2018 by fraziera112
If 294 grams of FeS2 is allowed to react with 176 grams of O2 according to the following unbalanced ... Started by soccerdreamer_17	1 Replies 110 Views	Aug 27, 2018 by ong527
Ammonium chloride may be considered as an exception of an ionic compound although it does not ... Started by pragya sharda	3 Replies 238 Views	Aug 27, 2018 by moormoney
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + ... Started by jessicacav	1 Replies 706 Views	Aug 27, 2018 by Joc
Atoms of Cl contain ________ protons and ________ neutrons. A) 17; 17 B) 17; 18 C) 18; 17 D) ... Started by wenmo	1 Replies 183 Views	Aug 27, 2018 by ebenov
Amino acids found in proteins all have the following features: A) All are -amino acids. B) All ... Started by mia	1 Replies 175 Views	Aug 27, 2018 by IAPPLET
Consider the isotope Br. The atomic number is ________, and the mass number is ________. A) 79; ... Started by jeatrice	3 Replies 126 Views	Aug 27, 2018 by pangili4
The isoelectric point of an amino acid is A) the pH at which it exists in the basic form. B) the ... Started by captainjonesify	1 Replies 94 Views	Aug 27, 2018 by djpooyouma
Where in a protein structure are basic groups located? A) at the N-terminal end B) at the ... Started by Brittanyd9008	1 Replies 56 Views	Aug 27, 2018 by alexisweber49
The pH at which the positive and negative charges of an amino acid balance each other is called the ... Started by bio_gurl	1 Replies 74 Views	Aug 27, 2018 by Chocorrol77
CH3NH2 + HCl CH3NH3+ + Cl- A conjugate acid-base pair in the reaction shown is ________ and ... Started by appyboo	3 Replies 106 Views	Aug 27, 2018 by macagnavarro