Because tap water is slightly acidic; water pipes made of iron corrode over time, . explain in terms of chemical reactivity, why copper pipes are less likely to corrode than iron ones
z ratings are for like 140mph i believe. here: S 180km/h or 112mph T 190km/h or 118mph U 200km/h or 125mph H 210km/h or 130mph V 240km/h or 149mph W(ZR) 270km/h or 168mph Y(ZR) 300km/h or 186mph ZR Above 300km/h or 186mph
Never downgrade a tire, keep at least what it came through the factory with, those are speed ratings.
Corrosion is merely an electromagnetic relation: electrons flow out of the metal into the water/air and bond with oxygen and form the metal/oxygen compound i.e. iron oxide in the case of iron. Corrosion rates are measured in a lab by speeding up the corrosive process with the help of electric currents. You can watch the corrosion process before you eyes by immersing 2 iron bars in water and connection a + charge to one and a - charge to the other (to a 9V battery or something). This is merely a fast version of what happens in the environment. As to why iron corrodes faster than copper--there are many factors that make metals differ in corrosive rates. The most prevalent is the 'standard electrode potential' of a metal. The lower the electric potential, the faster it will corrode.
CoCl2.6H20 deep blue shade the warmth -- Co2+, pink ions + 2 Cl 6H2) decomposition. Na2SO4 + BaCl2 -- 2 NaCl + BaSO4(s) single displacement Cu (s) warmth supplies the flame try of emerald green. a wee little bit of decomposition Zn(s) + 2HCl -- ZnCl2 + H2(g) single displacement The ions supply the colour. 2 H2O2 + catalyst -- 2H2O + O2(g decomposition Cu(s) + 2 AgNO3). -- Cu(NO3)2 + Ag(s) single displacement
