Classify each of the following changes as chemical or physical: crushing physical rock adding antifreeze to a car radiator scorching butter chemical physical

You lose 5 pounds over a 30-day period. Which of the following quantities act like astate function: the amount of calories you consume, your weight, or the number ofcalories burned through exercise?

A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water withwhiskey, honey, and lemon juice. A patient heats 16 oz. of 22C water on the stove until it hasabsorbed 33 kcal of energy. He then mixes 2.0 oz. of the hot water with 1.5 oz. of roomtemperature whiskey (d = 0.94 g/cm3, cs = 3.40 J/g C, T = 22 C). What is the temperature of thehot toddy (prior to adding the remaining ingredients)?

When 56 J of heat are added to 11 g of a liquid, its temperaturerises from 10.4oC to 12.7oC. What is the heat capacityof the liquid?

137 kJ to Calories.

Which has the greater kinetic energy, Object 1 with a mass of 2.9 kg and a velocity of 0.71 m/s or Object 2 with a mass of 1.3 kg and a velocity of 2.2 m/s? KE of Object 1 = J KE of Object 2 =| J |has greater kinetic energy. Object 1 Object 2 Retny Entire Groun O more aroun attempts remaining

How many kilocalories did the patient obtain from the lunch? Express the energy as an integer and include the appropriate units

Kinetic energy is best characterized by heat transferred from a hot object to a cool one O energy contained in a chemical compound energy stored in a battery O relative position of particles a 99+

2. How many grams of N2 are needed to make -550.0 kJ? N2g) + 3H2g) 2NH3(g) AH = -92.6 kJ %3D

how many calories correspond to 28.4 J?