Chemistry
Give three reasons why - carbon dioxide is considered a compound, while carbon - an element.
Answer
Carbon is an element, whereas carbon dioxide is considered a compound because:
Carbon is made up of only one kind of atom, Carbon dioxide is made up of two kinds of atoms i.e., Carbon and Oxygen [CO2].
Carbon cannot be broken down into two or more simpler substances by physical or chemical means. Carbon dioxide can be broken down into simpler substances by chemical means only.
Carbon has its own set of properties. Properties of Carbon dioxide differ from the properties of carbon and oxygen.
Related Questions
Give the symbols of the following elements - & state in each case whether they are metals, non-metals, metalloids or noble gases.
(a) potassium
(b) carbon
(c) oxygen
(d) mercury
(e) fluorine
(f) neon
(g) sulphur
(h) zinc
(i) boron
(j) copper
(k) calcium
(l) xenon
(m) arsenic
(n) mercury
(o) chlorine
(p) silicon
(q) neon
(r) lead
(s) antimony
(t) sodium
(u) iodine
(v) platinum
(w) radon
(x) phosphorus
(y) bromine
(z) aluminium
State what is meant by the term 'activity series of metals'. State the most reactive & the least reactive metal from the following - Zn, Ag, Na, Fe, Cu, Pb.
State what information is provided by the formula of calcium hydroxide - Ca(OH)2.
Four atoms of hydrogen combine with one atom of carbon to give methane [CH4]. State the valency of carbon.