Answer:
A charged atom is called an ion.Atom are neutral because they have the same numbers of positive and negative charges.By adding or taking away negative charges,Atom can become positive or negative.Protons and neutrons exist in the.nucleus of an atom.Protons have positive charge,whereas a neutron has no charge.
Explanation:
Answer:
Another eight cups of pure water will be required.
Explanation:
Start by calculating the amount (in cups) of vinegar in these six cups:
- One cup of vinegar-water solution would contain cups of vinegar.
- Two cups of vinegar-water solution would contain cups of vinegar.
- Three cups of vinegar-water solution would contain cups of vinegar.
Therefore, if these six cups of solutions were mixed, the mixture would contain cups of vinegar. Also, the mixture is supposed to have a volume of six cups. Therefore, the concentration of this six-cup mixture would be:
.
In other words, if these six cups of vinegar-water solutions are mixed, it would be necessary to dilute (by adding more water) before reaching the concentration of .
The goal is to dilute this solution with cups of vinegar to a concentration of . Consider: what would be the volume the solution after dilution?
The volume of a solution can be found from the quantity and concentration of its solute:
- Quantity of vinegar in this solution: cups.
- Concentration of vinegar in this solution: .
After dilution, the volume of this solution would be:
.
At this moment, this solution only has a volume of six cups. Therefore, cups of pure water will be required.
Yes, you can use up all the resources in the world if the human race inst careful.
Answer:
chemical weathering
physical weathering
biological weathering
Explanation:
biological weathering it when the plants grow the root move into the rocks to cause break down
Answer:
C stays same
Explanation:
Law of conversation of mass state that mass remain same during hating or chemical reaction