Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
antiseptics doesnt harm living cells whereas disinfectants harm living cellsand disinfectants are used to sterilize instruments and utensils but cant
q whcih process according to nelsons or caster - keller process is betterfor producing naoh explain tha processansnelsons process-
a nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction all molecules or ions with
glucose and sucrose are soluble in water because they are polar compoundsso they are soluble in polar compounds like water cyclohexane and benzene
electro refining of copper electrolyte - aqueous copper sulphate solution acidified cathode - pure copper metal thin rod anode - impure copper metal
the free energy change for the formation of oxide of aluminium is highly negative -1000 to -1100 so it can easily reduce any metal oxide abve it
electro refining of copperbull electrolyte - aqueous copper sulphate solution acidifiedbull cathode - pure copper metal thin rodbull anode - impure
thirty pounds of coal analysis 80 c and 20 h ignoring the ash are burned with 600 lbs of air with a variable humidity yielding a gas have an orsat
1 wet air containing 40 mole water vapor at 76degf and 148 psia is passed through a column of calcium chloride pellets the pellets absorb
a student wishes to prepare 250ml of a 020moll solution of oxalic acid cooh22h2o a calculate the amount noof moles of oxalic acid
i use valence shell electron pair repulsion theory vsepr to predict the shape of the molecule comprising oxygen nitrogen and fluorine atoms which has
if 45 grams of nitrogen reacted with 26 grams of hydrogen identify the following limiting reactant- excess reactant- and theoretical
2no ltgt n2 o2 has a keq of 85 keq n202 ------- no2 at equilibrium would have more reactants or
questionalthough co is well knownwhy doesn3939t sio exist under normal
give 2 examples of compounds that are bonded in the following ways a hydrogen bonding bvander waal forces c co-ordinate covalent
usually we grudgingly accept that syntheses involving activated eas reactions will unavoidably yield both ortho and para isomers and this
a mixture is prepared by adding 250 ml of 0185 m na3po4 to 340 ml of 0140 m cano32 a what mass in grams of calcium phosphate will be
200 ml of 02 m cacl2 diluted with water to 1000 ml calculate cacl2 ca2 and cl-produce from concentrated hydrochloric acid 12 m 30 l 060 m hcl
what are metal carbonyls and its cllasificationwhat is the main reason for the stability of different metal
at 350 degrees c nitrogen has a velocity of 800ms find the velocity of hydrogen at the same
lithium and beryllium markedly differ from other members of their respective groups read more
explain in words why hydroboration leads to anti-markovnikov addition of hydrogen whereas most electrophilic addtions to alkenes result in
4 a explain the concept of i intrinsic ii n-type and iii p-type semiconductors with the aid of bond diagrams and band diagramsb what is a hole using
1 air is available at 70degf and humidity of 0001lblb it is to be treated to yield 130degf and 70 humidity offer a