Physics, 13.10.2019 12:20 SMNS625

According to the law of conservation of matter, which statement about chemical reactions is true?

atoms are created by some reactions and destroyed by others.

energy is created as atoms are destroyed in chemical reactions.

atoms cannot be created or destroyed by chemical reactions.

every atom destroyed in a chemical reaction must be replaced

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 04:30, tinytoonjr8052

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.

Answers: 3

continue

Physics, 22.06.2019 07:20, MannyBanko1350

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Answers: 1

continue

Physics, 22.06.2019 15:00, katyym80

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?

Answers: 1

continue

Physics, 22.06.2019 20:50, isarahweller103

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?

Answers: 1

continue

You know the right answer?

According to the law of conservation of matter, which statement about chemical reactions is true?