Pieces of copper, silver and gold are dropped into a solution of iron sulphate. The piece that will get a coating of copper is. ... Therefore, none of the three metals can displace iron from its salt solution. Hence, we observe that no reaction takes place and none of the pieces get coated.
The given substance combusts following the reaction:
C2H2 + (5/2)O2 -> 2CO2 + H2O
Assume C2H2 is an ideal gas. At STP, 1 mol of an ideal gas
occupies 22.4 L. Given 100.50 mL of C2H2, this means that there is 4.4866 x
10^(-3) mol. Combusting 1 mol of C2H2 consumes (5/2) mol of O2, then combusting
the given amount of C2H2 consumes 0.01121 mol of O2. At STP, this amount of O2
occupies 251.25 mL.
To make aerobic compost, you simply gather organic material put it into a bin or a heap in the garden, aerate it and then add it to your soil (sorry if it’s not it )
Answer:
Mineral dusts are solid particles, that may become airborne depending upon their origin and the surrounding physical conditions. Lead is potential poison. It is obtained from the earth crust. The lead poisoning is a popular occupational hazard. The lead in air, when taken by the human body through respiration is responsible to cause anemia, weakness and kidney and brain damage, labored breathing and lung diseases.
Answer:
The cathode reaction is NiO2+H2O+2e−→Ni(OH)2+2OH−.