It is important in order to have all organs function properly.

2 Na3PO4 (aq) + 3 CaCl2 (aq) = Ca3(PO4)2 (s) + 6 NaCl (aq).

Than it is time for companionship, so contact a friend.

I think  that these are factors which directly have influence on the environment like temperature, humidity and down-beat.

Environmental factors are facts, situations, effects, behaviours, all things, small or big, that may have impact on the environment

I would think: 1.Awareness 2. Change of mentality 3.Education/training/teaching 4.Common efforts. 5. Start in the own living space.

Yes, that is why  I try quit smoking

Air pollution Water pollution Destroying of forests

I think that there are no specific environmental factors that influence, but that total environment influences.When you are young there is a lot that impresses you and there is a lot  you hold on to. You might be raised in a neigbourhood with a playground, having a lot of fun with  playmates equal of age, … Read more

The letter O stands for the symbol of oxygen. The letter N stands for the symbol of nitrogen. These are elements. Carbondioxide is not an element and cannot be represented by a symbol.As a compound It consists of he elements carbon and oxygen. C stands for the symbol of the element carbon.

1 Molecule oxygen consists of 2 atoms. 1 mole O2 = 6.02. 10²³ molecules (number of Avogadro). So the number of atoms: 2 x 6.02 x 10²³

1.It takes time. 2. If by chance you press the wrong key, the message may become unclear. 3.You have to know how to write( some people do not know).

PH = 4; [H3O⁺]= 10^-4 pH = 8; [H3O⁺]= 10^-8 pH = 12; [H3O+]=10^-12

I don't know for sure. But people, fond of plants, told me they use to talk to their plants. In the early morning they sing to them and say lovely, kind words to them. I heard some people go outside their house to pray between crops, saying it results in better harvest. So, it might … Read more

These tests has to be performed by  a laboratory. Impurifications may origin from inorganic, organic and/or microbiological material.

In most cases distilled water is used as a blank. That blank also serves as a reference solution. When you are going to measure a sample deviation of the blank indicates the prescence of certain components ( at given wavelengths).  If there were no controls you would not know what to refer to.

It has 5.

As molecules are build up from atoms they are much larger.There are more differences but this is the greatest one.

The smallest part of an element, ann atom  that will hold the specific characteristics of that element you will also meet in its molecules. You cannot change molecules or atoms.

That depends on the density. If we refer to water 1 mg corresponds to 1 microliter.