Pl HELLPPP ILL MARK BRAINLIES PROMISE
If the total mass of the products of a reaction is less...
Physics, 13.04.2020 20:26 LindaCat78
Pl HELLPPP ILL MARK BRAINLIES PROMISE
If the total mass of the products of a reaction is less than the mass of the reactants, what must be true?
A nuclear reaction has taken place.
A chemical reaction has taken place.
Nuclear fusion has occurred.
Nuclear fission has occurred.
Answers: 2
Physics, 22.06.2019 02:10
Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
Answers: 3
Physics, 22.06.2019 05:30
Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon
Answers: 2
Physics, 22.06.2019 13:10
A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)
Answers: 3
Physics, 22.06.2019 15:30
What is a costume plot? why is it important to a film or theater production?
Answers: 3
Chemistry, 05.12.2019 05:31
World Languages, 05.12.2019 05:31
Mathematics, 05.12.2019 05:31
English, 05.12.2019 05:31
Physics, 05.12.2019 05:31
History, 05.12.2019 05:31
Mathematics, 05.12.2019 05:31
English, 05.12.2019 05:31
English, 05.12.2019 05:31