Covalent bonds hold hydrogen and oxygen together.
Answer:
The balanced reaction in the acidic medium is:
Explanation:
1) 
( oxidation)
Balance oxygen by adding water :
Now , balance hydrogen by adding hydrogen ions on the side where hydrogen are less.
Add electrons to balance charge where positive charge is more.
..[1]
2) 
(reduction)
Balance oxygen by adding water :
Now , balance hydrogen by adding hydrogen ions by adding them on the side where hydrogen are less.
..[2]
Add electrons to balance charge where positive charge is more.
..[2]
3 × [1] + 2 × [2]
The balanced reaction in the acidic medium is:
Answer:
7. 5km/h
8. 10km/h
I just need to add characters so i can post
Answer:
the<u> atomic mass</u> of an element is the average mass of an element naturally occurring atom, or isotopes, taking into account the <u>percentage</u> of each isotopes
Explanation:
The atomic mass of an element is obtained by obtaining the relative abundances (in percentages) of naturally occurring atoms and the masses of the isotopes. The atomic mass can also be defined as the sum of the protons and the neutrons in the nucleus of an element.
In the periodic table, the atomic mass is indicated below the symbol of each of the elements and is usually in the decimal form.
Answer: It is called a Crookes Tube, and he used it to discover cathode rays, which were later determined to be electrons.
