BaF2, which is called barium fluoride.
Barium bromide: BaBr2
The formula is BF3
The Lewis dot formula for bromine chloride is very easy to write. It starts with a singly bonded Br and Cl atom in the center. On every unbonded side of both atoms there is a single pair of dots.
98%
H2O The little 2 is a subscript that tells you that there are 2 Hydrogen atoms in the compound. There is no 1 after the Oxygen because if there is no subscript, there is an understood 1 atom in the compound.
Dinosaurs were made up of atoms. Every single object is made up of atoms only. Incidentally most of the animals have same atom in their body. They are there in more or less quantity.
Atoms are the things that make up the world, so they are found everwhere.
Fluorine is an element. Its atoms are made of basically 3 fundamental particles (as is an atom of every other element just with different proportions) called electrons, protons and neutrons. Fluorine itself is a pure substance and contains no other particles except Fluorine atoms.
Depends on the number of formula units. In one formula unit there are 4 atoms.
Ba(OH)2 As you can see, two oxygen atoms. You will learn that barium is an alkaline earth metal with two valance electrons to donate to this compound and that hydroxide is a polyatomic ion, that is a interior covalent bond between oxygen and hydrogen, and a charge of 1 -. So, you need two hydroxides for every one barium.
There are two hydrogen atoms for every oxygen. The formula is H2O.
3
PCl3
CaCl2
NCl3
Draw 8 carbon atoms in a row. And then join three hydrogen atoms to every carbon atom in the corners. Join two to the every other.
The number of hydrogen atoms is twice the number of oxygen atoms. Glucose is C6H12O6, so there are 12 hydrogen atoms for every 6 oxygen atoms in a molecule.
If you know your Classics (Latin), the name gives the clue . 'Tetra' means four(4). So carbon tetrachloride is has four chlorine atoms. Its modern IUPAC name is 'Tetrachlormethane'. It has the formula 'CCl4'.
A chemical formula shows the elements in the compound and the ratio of atoms. For example, the chemicals formula for carbon dioxide is CO2 . In the carbon dioxide, there are always two oxygen atoms to every one carbon atom.