Noble gases
also known as Inert gases
Answer:
The answer is the third one, the brands being tested
Explanation:
I would say A. Sulfur dioxide. Local coal burning power plants have been known to change the color of the sky.
Answer:
It is an example of single displacement reaction.
Explanation:
<u>Single replacement reaction:</u>
A single element replaces another element in a compound.
For example,
The given reaction is as follows.
In the above reaction, aluminium bromide is dissociated into the , these bromide ions are reacted with potassium atoms to form potassium bromide.
Here, only one element displaces therefore, it is an single displacement reaction.
The equation of 5m+4=7m+6 is equal to m=-1