Although coal and diamonds are both composed of carbons alone, they differ in their properties because of the bonds present in each substance. Diamonds are composed of covalent bonds which are strong and is crystalline in nature which makes it sturdier. Coal is amorphous which allows the slipping of irregular layers to each other making coal brittle
The van't Hoff factor is the ratio between the amount of particles produced when a substance is dissolved and the amount of substance being dissolved. If ionization is 0 percent then it would mean that the substance do not dissociate into particles so the van't Hoff factor would be 1. However, when the percent ionization is 100%, then it fully dissociates into ions. For H2SO4 at 100% ionization, the vant hoff factor should be three, two hydrogen ions and one sulfate ion.
Answer:
<em>1</em><em>.</em><em> </em><em>Element</em>
<em>2</em><em>.</em><em> </em><em>Heterogeneous</em><em> mixture</em>
<em>3</em><em>.</em><em> </em><em> </em><em>Compound</em>
<em>4</em><em>.</em><em> </em><em>Mixture</em><em> </em><em>or </em><em>Substances</em>
<em>5</em><em>.</em><em> </em><em>Elements</em>
<em>6</em><em>.</em><em> </em><em>Homogeneous</em><em> mixture</em>
Dissolved organic substance present in natural water is a complex mixture compounds and contains most of the reduced carbon present in aquatic ecosytem . this can not be easily treated or disinfected by the conventional treatment . the experiments show that water sample with higher dissolved substance need higher cholrine demand . this is the reason that before disinfecting with chlorine ..... need to remove organic substance {{{ because it increase chlorine demand }}}