CaO+H_(2)O rarr Ca(OH)_(2)

Count the number of atoms of each elements on left and right of the arrow in the equation CaO+H_(2)Orarr Ca(OH)_(2) .

Assertion (A) : CaO+H_(2)Orarr Ca(OH)_(2) is a chemical change. Reason (R) : The original substance does not loss their characteristic properties in chemical change.

In coal, pyrites (FeS_(2)) is present as a pollution-causing impurity, which is removed by combustion. 2FeS_(2) + 5O_(2) rarr 4SO_(2) + 2FeO . A process designed to remove orgainc sulphur from coal prior to combustion involves the reaction. X - S - Y + 2NaOH rarr X - O - Y + Na_(2)S + H_(2) O CaCO_(3) rarr CaO + CO_(2) Na_(2)S + CO_(2) + H_(2)O rarr Na_(2) CO_(3) + H_(2) S CaO + H_(2)O rarr Ca (OH)_(2) Na_(2) CO_(3) + Ca(OH)_(2) rarr CaCO_(3) + 2NaOH In the processing in 320 metric tons of a coal having 1.0% sulphur content, how much limestone (CaCO_(3)) must be edecomposed to provied enough Ca (OH)_(2) to regenerate the NaOH used in the original leaching step?

In coal, pyrites (FeS_(2)) is present as a pollution-causing impurity, which is removed by combustion. 2FeS_(2) + 5O_(2) rarr 4SO_(2) + 2FeO . A process designed to remove orgainc sulphur from coal prior to combustion involves the reaction. X - S - Y + 2NaOH rarr X - O - Y + Na_(2)S + H_(2) O CaCO_(3) rarr CaO + CO_(2) Na_(2)S + CO_(2) + H_(2)O rarr Na_(2) CO_(3) + H_(2) S CaO + H_(2)O rarr Ca (OH)_(2) Na_(2) CO_(3) + Ca(OH)_(2) rarr CaCO_(3) + 2NaOH In the processing in 320 metric tons of a coal having 1.0% sulphur content, how much limestone (CaCO_(3)) must be edecomposed to provied enough Ca (OH)_(2) to regenerate the NaOH used in the original leaching step?

CaCO_(3) overset(Delta)rarr CaO +CO_2 CaO+3C rarr CaC_(2) +CO CaC_(2) +2 H_(2)O rarr Ca (OH)_(2) +C_(2) H_(2) The weight of CaCO_(3) needed for the preparation of 2.24 lit of Acetylene gas under S.T.P conditions is

Which hydrolysis reaction is not correct? (A) CaH_(2)+2H_(2)O rarr Ca(OH)_(2)+2H_(2) (B) CaC_(2)+2H_(2)O rarr Ca(OH)_(2)+C_(2)H_(4) (C) AlN+3H_(2)O rarr Al(OH)_(3)+NH_(3) (D) Ca_(3)P_(2)+6H_(2)O rarr Ca(OH)_(2)+2PH_(3)

Be_(2)C+H_(2)O rarr BeO+X CaC_(2)+H_(2)O rarr Ca(OH)_(2)+Y M_(2)C_(3)+H_(2)O rarr Mg(OH)_(2)+Z X,Y and Z are respectively:

Identify the types of reactions represented by the following equations : (i) CuSO_(4) +2NaOH to Cu(OH)_(2) + NaSO_(4) (ii) CaO +H_(2)O to Ca(OH)_(2) (iii) 2H_(2)s +SO_(2) to 3S +2H_(2)O (iv) Zn +2AgNO_(3) to Zn(NO_(3)) +2Ag (v) Ca(OH)_(2) +2HCI to CaCI_(2) +2H_(2)O

The volume of acetylene at NTP produced by reaction to 50gm of CaC_(2) with water is : CaC_(2)+H_(2)O rarr Ca(OH)_(2)+C_(2)H_(2)

The volume of ascetylene at NTP produced by reaction of 50 gm of CaC_(2) with water is : CaC_(2)+H_(2)O rarr Ca(OH)_(2)+C_(2)H_(2)