<span>Chemical formula of ammonia = NH3
As we can see there are three atoms of hydrogen in one molecule of ammonia.
So in the 200 molecule of ammonia there will be = 200*3 = 600 atoms of hydrogen.
Answer - 600 atoms of hydrogen.</span>
703.7693999989732 i believe if i did my math right
The physical process of evaporation involves the heat absorbing and the status of the substance changing. The status of this substance changes form liquid to gas.
Answer:
D. It is extremely reactive.
Explanation:
Potassium has atomic number of 19 and belongs to the group 1 elements.
A. It is dull and brittle
This is not true as potassium is a metal with a silver lustre.
B. It is not reactive
This is false. Because it is a group 1 element, it would readily lose it's electron to achieve octet configuration making it a reactive metal.
C. It is white and hard.
Potassium is a white metal, however it is not hard. Rather it is soft.
D. It is extremely reactive.
This is correct. Because it is a group 1 element, it would readily lose it's electron to achieve octet configuration making it a reactive metal.
