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Which of the following is an example of a chemical change?
The type of bonding in [Cu(NH\(_3\))\(^4\)]\(^{2+}\) is
What is the PH of 0.00 1 moldm\(^3\) solution of the sodium hydroxide
The Sulphide which is insoluble in dilute hydrochloric acid is
A substance that is used as a ripening agent for fruits is
According to Charles' law, the volume of a gas becomes zero at
A given amount of gas occupies 10.0dm\(^3\) at 4 atm and 273°C. The number of moles of the gas present is?
[Molar volume of gas at s.t.p = 22.4 dm\(^3\)]
X(g) + 3Y(g) ---- 2z(g) H = +ve. if the reaction above takes place at room temperature, the G will be
Ca(OH)2(s) + 2NH4Cl(s) → CaCl2(s) + 2H2O(l) + X. In the reaction above X is
Calculate the amount in moles of a gas which occupies 10.5 dm3 at 6 atm and 30oC [R = 0.082 atm dm3 K-1 mol-1]
A particle that contains 9 protons, 10 neutrons and 10 electrons is