Reaction 1: c3h8(
g. 5o2(
g.→3co2(
g. 4h2o(
g., δh1=−2043 kj reaction 2: 4c3h8(
g. 20o2(
g.→12co2(
g. 16h2o(
g., δh2=?

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which statement best explains the relationship between an area is geography and the temperature of its surface water