Advertisements
Advertisements
Question
Does the solubility of a substance change with temperature? Explain with the help of an example.
Advertisements
Solution
Yes, the solubility of a substance changes with temperature. It generally increases with temperature. More sugar can be dissolved in hot water as compared to cold water.
APPEARS IN
RELATED QUESTIONS
TRUE \ FALSE
Neils Bohr gave the theory to explain the arrangement of protons in an atom.
Fill in the blank
An ion with negative charge is called _______
Define: Relative atomic mass
Name three non-metals/radicals which have valency -1, -2, and -3.
Name the particle or particles you would expect to find in :
The nucleus of an atom
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
What value has been given to the mass of this reference atom ?
State two observations which show that atom is not indivisible.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will gain electron?
State the meaning of the term – (a) atom, (b) molecule, (c) radical – with a suitable example.
Rewrite the given sentence in correct form.
Elements contain two or more kind of atoms and compounds contain only one kind of atom.
Define – Atom.
Name the sub-atomic particles.
Define the following term with an example.
Compound
Define the following term with an example.
Metal
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
The number of atoms present in a molecule is called its ______.
______ is a substance that is made up of three oxygen atoms chemically combined.
