Calculate the enthalpy change for the reaction CaCO3(g)→CaO(s)+CO2(g) , from the following equations: 2Ca(s)+O2(g)→2CaO(s) ΔH=−1270kJ 2Ca(s)+2C(s)+3O2(g)→2CaCO3(s) ΔH=−2414kJ C(s)+O2(g)→CO2(g) ΔH=−394kJ

Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a