subject
Chemistry, 17.01.2020 06:31 dbn4everloved

A1.0 g sample of a cashew was burned in a calorimeter containing 1000. g of water, and the temperature of the water changed from 20.0°c to 25.0°c. in another experiment, a 3.0 g sample of a marshmallow was burned in a calorimeter containing 2000. g of water, and the temperature of the water changed from 25.0°c to 30.0°c. based on the data, which of the following can be concluded about the energy content for 1.0 g of each of the two substances? (the specific heat of water is 4.2 j/(g⋅° (a) the combustion of 1.0 g of cashew releases less energy than the combustion of 1.0 g of marshmallow. (b) the combustion of 1.0 g of cashew releases the same amount of energy as the^combustion of 1.0 g of marshmallow. (c) the combustion of 1.0 g of cashew releases more energy than the combustion of 1.0g of marshmallow. (d) no comparison can be made because the two systems started with different masses of food, different masses of water, and different initial temperatures.

ansver
Answers: 3

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 22:20, aidengalvin20
One or more substances changing into one or more substances is an example of a
Answers: 1
image
Chemistry, 22.06.2019 10:10, babyphoraaaaa
For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate, m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2
Answers: 3
image
Chemistry, 22.06.2019 23:00, aly02
Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c. vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false
Answers: 1
image
Chemistry, 23.06.2019 06:00, BigGirlsTheBest
Amanda pushes a box across the room with a force of 30 n. it accelerates at 5 m/s/s. what is the mass of the box? * 6 kg 1.16 kg 30 kg 5kg
Answers: 2
You know the right answer?
A1.0 g sample of a cashew was burned in a calorimeter containing 1000. g of water, and the temperatu...

Questions in other subjects:

Konu
Biology, 03.09.2020 06:01