Use the data from this table of thermodynamic properties to calculate the values of δs°rxn for each of the following reactions at 25 °c. a) 4nh3(g) + 7o2(g) > 4no2(g) + 6h2o(g) delta s rxn =? b) 2h2o2(l) --> 2h2o(l) +o2 (g) delta s rxn =?

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

What happens when light is scattered?

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.