The solubility, in moles per dm3 of 20.2 g of potassium trioxonitrate (V) dissolve in…
The solubility, in moles per dm3 of 20.2 g of potassium trioxonitrate (V) dissolve in 100 g of…
Browsing Category
Answers
40747 posts
Element X, Y and Z belong to a groups I, V and VII respectively. Which…
Element X, Y and Z belong to a groups I, V and VII respectively. Which of the following…
A solid that absorbs water from he atmosphere and forms an aqueous solution is?
A solid that absorbs water from he atmosphere and forms an aqueous solution is? A. hydrophilic B. efforescent…
A major effect of oil pollution in coastal waters is the?
A major effect of oil pollution in coastal waters is the? A. destruction of marine life B. desalination…
Which of the following physical properties decreases down a group in the periodic table?
Which of the following physical properties decreases down a group in the periodic table? A. Atomic radius B.…
The number of electrons in the valence shell of an element of atomic number 14…
The number of electrons in the valence shell of an element of atomic number 14 is? A. 1…
The shape of ammonia molecule is?
The shape of ammonia molecule is? A. trigonal planar B. octahedral C. square planar D. tetrahedral Correct Answer:…
An increase in temperature causes an increase in the pressure of a gas because?
An increase in temperature causes an increase in the pressure of a gas because? A. it decreases the…
To what temperature must a gas 273 K be heated in order to double both…
To what temperature must a gas 273 K be heated in order to double both its volume and…
For a gas, the relative molecular mass is equal to 2Y. What is Y?
For a gas, the relative molecular mass is equal to 2Y. What is Y? A. The mas of…