2.85g of an oxide of copper gave 2.52g of copper on reduc...
2.85g of an oxide of copper gave 2.52g of copper on reduction and 1.90g of another oxide gave 1.52g of copper on reduction. The data above illustrates the law of?
constant composition
conservation of mass
reciprocal proportions
multiple proportions
Correct answer is D
No explanation has been provided for this answer.
A few drops of concentrated HNO3 is added to an unknown solution and boiled for a while. If thi...
The following compounds contain the same type of bonds except...
The vapour density of a gas may be defined as ...
Which of the following is an example of a chemical change? ...
The strength of metallic bonds depends on the ...
Which of the following statements about catalyst is false? ...
The graph above demonstrate the effect of? ...
When iron is exposed to moist air, it gradually rusts. This is due to the formation of? ...
If the volume of a gas at 35°C is 60cm3, what would be its volume in cm3 at 273k?...