Hey umm i need help on a science question on the energy and natural resoucres? thoughts??? :)

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-