Mayorall's Posts
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Drop questions please....coming to solve the calculation.... |
Please always explain your answers so that others can benefit from what you know...........Tanx |
Obinnau: chemistry has been my bane all along.You can get through that..so let me know where the problem is if I could be of help......... |
mayorall: Which of the following reactions will be affected by change in pressure of d equilibrium......Reaction A C & D has 2 moles each at the forward and backward reaction so there wont be changes in the equilibrium. Reaction B has 3 moles at the backward reaction and 2 moles at the forward reaction so the equilibrium will shift to the forward reaction if pressure is increased. Therefore, pressure has effect on reaction B. |
[quote author=t.boy007]answer:1/0.8/22.4 i'm sorry,i've no calculator with me here![/quote]U gat wok it 2 get da final ansa.... |
Obinnau: i think its Anot A sir. |
[quote author=mayorall][/quote]. |
Which of the following reactions will be affected by change in pressure of d equilibrium...... A.x + y <===> w + z B.x + 2y <===> w + z C. 2x <===> w + z D. 2y <===> w + z all at equilibrium and gases....... |
The mass of 800cm^3 of a gas X at s.t.p is 1.0g...what is the molar mass of x....volume at s.t.p 22.4dm^3 |
Thromboplastin is associated with a.Blood formation b.Pigments formation c.Blood clotting d.Blood circulation |
The worn out erythrocytes is destroy by a.Heart b.Liver c.Cell d.kidney |
larri: The nitrogenous substance that is excreted by birds in order to conserve water is (A).ammonia (B).urea (C).uric acid (D)nitric acidUrea, Liver, tendon.... |
Atesunate15: 2H2 + O2 ------> 2H2Ohmmm lets try it da other way round and get the ansa 2H2 + 02 .......> 2H20 using the above formulars... Moles = mass/molar mass moles =8/2+2 (frm d reactns) moles =2 using sam formular to find the mass of water moles =mass/molar mass. We v gotn our mole as 2 :- mass of water = moles * molar mass mass=2 * (2H20) mass =2 * (2(2+16)) mass =2 * 38=76 The mass of water is 76.0g |
Atesunate15: i fink it should be canivourousHolozoic.....heterotroph |
Atesunate15: dThe ansa is c protein...boss u dey para o...drop questions 2... |
1.what mass of water is produced when 8.0g of hydrogen reacts with excess oxygen? A.36.0g b.8.0g c.72.0g d16.og |
The oily substanc dat lubricates mammalian hair z a. Sebaceous gland b.fatty cells c.granular cells d.sweat glands |
The circulation of blood 2 al pats of d body except d lungs is tru a.lymphatic system b.pulmonary circulatn c. Systemic circulation d. Pulmonary artery |
The mode of nutrtn of sundew and bladderwort cn b dscrbd as a.saprophytic b.holozoic c.autotrophic d.chemosynthetic |
Which of dz z lackin in diet of persn avin kwashiokor a.minerals b.vitamins c.proteins d. carbohydrates |
mayorall: Accounting, Economics, Political science and international relations, Geography, Sociology etc... |
Which of d folowin z a polysaccharide a. glucose b. fructose, c.cellulose d.maltose 2 wch of d 4loin posses mammary gland a. Dogfish b. Whale c. Shark d. Catfish 3.The function of ribosomes in cells is a. Starch synthesis b. Lipid storage c. Transport materials d. Protein synthesis 4.The functn of tricocytst in paramecium is a movement b defence c excretion d reproduction. |
Bring in the calculation questions so we can apply the formulars,....... |
mayorall: Sum had bin findn it dfcult in solvn calculatns on chemistry...buh ds litu formulars will help you on solving the calculationsNote: number of particles can be numba of atom,ion,molecule p is pressure v volume r constant t temperature |
Sum had bin findn it dfcult in solvn calculatns on chemistry...buh ds litu formulars will help you on solving the calculations a.moles= mass gven/molar mass b. Moles= number of particles/6.02*10^23 c .moles = concentration in mol/dm^3 * Volume in dm^3 d. Moles = volume\22.4dm3 e. Moles =pv/rt |
larri: because d atomic number (proton number) of an element does nt change with chemical reaction....the atomic number determines d chemical properties of an element....Hmmmmm nice one...........proton does not take part in chemical combination...itz electron that does..... |
Why is it that the chemical properties of an element does not change after chemical combination..... |
Always support your answers with little explanations.....keep da game goin by also bringing in questions.... |
mayorall: The first cell of an individual is |
The first cell of an individual is a. Blastomere b. Sperm c. Zygote d. Egg |
The commercial production of Tetraoxosulphate (vi) acid is know as a. vulcanization b. contact process c. Herber process d. Isomerization |
For jamb 2013 tutoria for chemistry and biology...lets meet on this thread www.nairaland.com/1210309/jamb-thread-biology-chemistry#14529558 |
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