|
Explain Dalton's atomic theory of matter on the basis of law of chemical combination and other related chemical observations
|
|
0
|
1401
|
August 9, 2016
|
|
If ten volume of dihydrogen gas reacts with five volume of dioxygen gas, how many volumes of water vapour would be produced?
|
|
0
|
725
|
August 9, 2016
|
|
Calculate the amount of water (g) produced by the combustion of 16g of methane
|
|
0
|
14371
|
August 9, 2016
|
|
The water level in a metric measuring cup is 0.75 L before the addition of a pebble weighing 150 g. The water level after submerging the pebble is 0.82 L
|
|
1
|
2982
|
August 9, 2016
|
|
Which one of the following will have largest number of atoms?
|
|
1
|
3095
|
August 9, 2016
|
|
What is the SI unit of mass ? How is it defined?
|
|
0
|
5644
|
August 9, 2016
|
|
Pressure is determined as force per unit area of the surface. The SI unit of pressure, pascal is as shown below:
|
|
1
|
6314
|
August 9, 2016
|
|
50.0 kg of $N_{2}$(g) and 10.0 kg of $H_{2}$ (g) are mixed to produced N$H_{3}$ (g). Calculate the N$H_{3}$(g) formed
|
|
1
|
517
|
August 9, 2016
|
|
What mass of silver nitrate will react with 5.85 g of sodium chloride to produce 14.35 g of silver chloride and 8.5 g of sodium nitrate, if the law of conservation of mass is true?
|
|
0
|
11003
|
August 9, 2016
|
|
If the speed of light is 3-0 x 10^{8} $m{{s}^{-1}}$, calculate the distance covered by light in 2.00 ns
|
|
0
|
681
|
August 9, 2016
|
|
Calculate the mass of one litre of mercury in grams and kilograms if the density of liquid mercury is 13.6 g $c{{m}^{-3}}$
|
|
0
|
6425
|
August 9, 2016
|
|
How many number of atoms are present in 52u of He?
|
|
0
|
6843
|
August 9, 2016
|
|
How many significant figures should be present in the answer of the following calculations?
|
|
1
|
2369
|
August 9, 2016
|
|
What do you mean by the term molecule?
|
|
0
|
409
|
August 9, 2016
|
|
Explain the term element
|
|
0
|
457
|
August 9, 2016
|
|
How can you explain chemistry by the flow chart?
|
|
0
|
1993
|
August 9, 2016
|
|
How many types of units used for describing measurement of various physical quantities?
|
|
0
|
373
|
August 9, 2016
|
|
What is the meaning of central science in chemistry?
|
|
0
|
1110
|
August 9, 2016
|
|
Write the empirical formulae of the following:Glucose Borazine
|
|
1
|
966
|
August 9, 2016
|