Helium is used in observation of ballons because it is?
Helium is used in observation of ballons because it is? A. Light and combustible B. light … Read More
Chemistry
A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of…
A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of the … Read More
Chromatography is used to separate components of mixture which differ in their rates of ?
Chromatography is used to separate components of mixture which differ in their rates of ? A. … Read More
The volume occupied by 1.58g of a gas at S.T.P is 500cm(^3). What is the relative…
The volume occupied by 1.58g of a gas at S.T.P is 500cm(^3). What is the relative molecular … Read More
How many valence electrons are contained in the element (^{31}_{15}P)?
How many valence electrons are contained in the element (^{31}_{15}P)? A. 3 B. 4 C. 15 … Read More
The number of molecules of Carbon(iv)Oxide produced when 10.0g of CaCO(_3) is treated with 0.2dm(^3)…
The number of molecules of Carbon(iv)Oxide produced when 10.0g of CaCO(_3) is treated with 0.2dm(^3) of … Read More
If the quantity of oxygen occupying 2.76L container at a pressure of 0.825 atm and…
If the quantity of oxygen occupying 2.76L container at a pressure of 0.825 atm and 300k … Read More
Four elements P, Q, R and S have atomic numbers of 4, 10, 12 and…
Four elements P, Q, R and S have atomic numbers of 4, 10, 12 and 14 … Read More
The products of the thermal decomposition of ammonium trioxonitrate(v) are?
The products of the thermal decomposition of ammonium trioxonitrate(v) are? A. Nitrogen (I) Oxide and Water … Read More
When water drops are added to calcium carbide in a container and the gas produced…
When water drops are added to calcium carbide in a container and the gas produced is … Read More