Light moves in a straight line except at surfaces between different transparent materials, where its path bends.
Ionic compounds are those compounds which form an ion or
dissociates into ions when placed in a solution. These compounds are made up of
a metal and non metal. From the choices, here are the ionic compounds:
na2so4
h2so4
cacl2
<span>ca3(po4)2</span>
Answer:
Wavelength (λ) – The distance of one complete cycle in the wave. The distance between two consecutive crests and /or troughs. S.I. Unit: metre (m).
In other words:
Wavelength is the distance from crest to crest (or trough to trough).
Answer:
The pH of 0.001 M HNO3 is pH 2.0
Answer:
An Exothermic reaction.
Explanation:
An exothermic reaction produces heat, while endothermic reactions absorb heat
