Stannous flutoide is ionic
A volatile substance can evapourate easily
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Answer: Cesium chloride dissolves in pure water has
> 0.
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.
is positive when randomness increases and
is negative when randomness decreases.
a) 
As 2 moles of gas are converting to 1 mole of gas and 1 mole of liquid, the randomness decreases and hence
is negative.
b) 
As gas molecules are converting into aqueous and liquid form, the randomness decreases and hence
is negative.
c) lithium fluoride forms from its elements: 
As elements are combining to form a compound, the randomness decreases and hence
is negative.
d) Cesium chloride dissolves in pure water : 
As compound is dissociating into ions, the randomness increases and hence
is positive.
1) Body tube (Head): The body tube connects the eyepiece to the objective lenses. Arm: The arm connects the body tube to the base of the microscope. Coarse adjustment: Brings the specimen into general focus. Fine adjustment: Fine tunes the focus and increases the detail of the specimen.
2)Microscopes are made up of lenses for magnification, each with their own magnification powers. Depending on the type of lens, it will magnify the specimen according to its focal strength.
3)In simple magnification, light from an object passes through a biconvex lens and is bent (refracted) towards your eye. ... The eyepiece lens usually magnifies 10x, and a typical objective lens magnifies 40x. (Microscopes usually come with a set of objective lenses that can be interchanged to vary the magnification.)