15 g of a salt is dissolved in 150 mL of water, which resulted in the temperature of the water going up by 7 C. What is the energy released/absorbed by the water? (report in kJ) (include the mass of the salt in your calculation) (specific heat of water 4.18 J/gK)

The reaction q+r2=r2q is found to be first order in r2 and

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.