A. electron, B. Nucleus
Proton is positive charge, electron is negative charge
proton weight, 1 AMU
Answer:
im not confident bet i can try.
If you are looking for what could contradict the scientific theory, the answer would be, "new experiments that contradict the theory". If a new experiment were to be proving something inccorect or somewhat false in a theory, than what would be the greatest challenge to it would be to test it.
I hope this answer helped you!
Answer:
Explanation:
A new Material is formed.
Basically, Chemical changes differ from Physical changes because in chemical changes, Substances have the ability to become a different substance.
Example:
Water to ice is a physical change because it is still water despite being a solid from liquid.
A Magnesium strip placed in CuSO4 solution made the Mg strip turn into a new substance which is MgSO4. this is a Chemical change because Mg has now become a different substance called MgSO4.
Answer:
Drinking water can be produced from waste water and from lakes but the difference is in the difficulty of producing water which we can consume.
Drinking water should be clean and toxic free so that if does not affect the human body. Waste water carry more toxic matter in comparison to lake water that's why, producing drinking water from waste water takes more time, expensive and difficult.
So, producing drinking water from waste water is more difficult as it require the removal of more toxic matter than water in lakes.
