subject
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

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 04:30
In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.
Answers: 1
question
Physics, 22.06.2019 08:00
If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
Answers: 3
question
Physics, 22.06.2019 11:30
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? your
Answers: 2
question
Physics, 22.06.2019 16:20
Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow
Answers: 1
You know the right answer?
According to the law of conservation of matter, which statement about chemical reactions is true?
Questions
question
French, 08.12.2020 22:30
question
Mathematics, 08.12.2020 22:30
question
Mathematics, 08.12.2020 22:30
question
Biology, 08.12.2020 22:30
question
Mathematics, 08.12.2020 22:30
question
Arts, 08.12.2020 22:30
Questions on the website: 13722367