Answer:
Mass of solution = 25 g
Explanation:
Given data:
Mass of salt = 5 g
Mass of water = 20 g
Mass of solution = ?
Solution:
Mass of solution = mass of solvent + mass of solute
Now we will put the values.
Mass of solution = 20 g + 5 g
Mass of solution = 25 g
Answer:
The answer to your question is 18 neutrons
Explanation:
Data
Number of neutrons = ?
Atomic mass = 35
Three energy levels
seven valence electrons
Process
1.- We know that this element is on the third period (3 energy levels)
2.- We also know that this element is located on group 7A (it is a halogen)
3.- From the previous information, we conclude that this element is Chlorine.
4.- Chlorine has an atomic number of 17.
5.- The number of Neutrons = Atomic mass - atomic number
= 35 - 17
= 18
Substituting a hydrogen atom with a halogen in a hydrocarbon:
- the single bond remains single. A is wrong.
- the bond with Hydrogen is as strong as with a Halogen. C is wrong
- a hydrocarbon is saturated if there is no double bond. We do not know that so D is wrong.
- carbon will always have four valence electrons. E is wrong.
By elimination, the correct answer is B. The boiling point of the new compound increases.
No! That’s why they’re called theories. Most of them have a lot of facts to back it up however the theories themselves are either proven or just hypothetical.