they have two valence electrons
Approximately since the 1600s, when a guy named Anton Leeuwenhoek found something swimming in seminal fluid. No one really connected the fact that sperm and eggs worked together to make a child till a lot later though... about 1875.
No, halogens are a group of non-metal elements that are part of the periodic table. They are not alkaline solutions; in fact, they tend to form acidic solutions when they react with water.
Potassium is not an alkaline earth metal, it is an alkali metal. The metals in the leftmost column of the periodic table. They are noted for their high reactivity and for the fact that most of their compounds are basic.
This fact is called Pascal's Law. Pascal's Law states that pressure applied to a fluid in a confined space will be transmitted equally in all directions throughout the fluid.
Importance of fact finding techniques in succes of a project
Emphasis is to show the importance of a fact. Stress is to forcefully try hard to show the importance.
Sodium carbonate is an alkaline compound. It is commonly known as washing soda and has a high pH due to its ability to release hydroxide ions in solution.
It is important because fact is what is proven by an official and opinion is what you determine on your own. :)
The pressure in a fluid is affected by its depth and the density of the fluid. As depth increases, the pressure also increases due to the weight of the fluid above pushing down. The density of the fluid also plays a role, with denser fluids resulting in higher pressure for a given depth.
The fact that it is the word of God (Exodus 24:12).
The special importance of a peer group is the fact that it helps people learn to evaluate each other through the eyes of their peers. They can also gain important feedback from one another about difficult situations.