Wht Is The Hardest Substance?
Wht is the hardest substance?
for me the hardest subject is calculus... its very simple problem but in terms of solving it takes 1 whole to finish the whole answer..
Difference B/W Mixture And Compound?
Difference b/w mixture and compound? Good Day.... Compound - is a combination of two or more elements which are chemically bonded either by ionic bond or covalent bond. The atoms or elements composing the compound have a fixed proportion. The elements or atoms cannot be separated by physical means. example of compound: water (H2O) composed of 2 hydrogen and 1 oxygen. Cannot be separated by filtration or evaporation. Mixture - a combination of two or more substances or compound that are not chemically joined or bonded. Mixture doesnt have a fixed proportion of the substance being mixed. The substances can be separated by physical means. Example of mixture : water (H2O) with sand. You can separate water from sand by filtration and evaporation which is a physical means of separating mixtures. Hope it helps...=)
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