subject
Physics, 26.05.2020 04:59 djcloverman3593

Which is true how mass changes in physical and chemical changes?
a.) Mass is conserved in both physical and chemical changes
b.) Mass is conserved in chemical changes but not in physical.
c.) Mass is not conserved in either physical and chemical changes.
d.) Mass is conserved in physical changes but not in chemical changes.

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 05:30
Anybody wanna ? (picture included? )
Answers: 1
question
Physics, 22.06.2019 08:00
Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.
Answers: 3
question
Physics, 22.06.2019 18:00
Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
Answers: 1
question
Physics, 22.06.2019 23:30
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the personโ€™s average speed in kilometers per hour?
Answers: 2
You know the right answer?
Which is true how mass changes in physical and chemical changes?
a.) Mass is conserved in both...
Questions
question
Mathematics, 08.03.2021 20:10
Questions on the website: 13722367