Answer
Fluorite
Explanation
Fluorine is a yellowish, poisonous, highly corrosive gas. It is the most chemically active nonmetallic element and is the most electronegative of all the elements. It is a member of Group 17 (the halogens ) of the periodic table .
Answer:
353.10g/l
Explanation:
1000ml make 1 l
725ml are equivalent to 0.725l
Thus 625/0.725 makes a solution of
353.10g/l
Because neither can be created or destroyed
In a displacement reaction, a more reactive element replaces a less reactive element from a compound. In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.
Explaination:
Displacement chemical reaction :
A displacement reaction is the one wherein the atom or a set of atoms is displaced by another atom in a molecule. For instance, when iron is added to a copper sulphate solution, it displaces the copper metal.
Fe + CuSO4 → FeSO4 + Cu. When zinc is added to a copper sulphate solution, it displaces the copper metal. ...
Zn + CuSO4 → ZnSO4 + Cu.
etc.
Double Displacement Chemical Reaction :
Double displacement reactions take place mostly in aqueous solutions wherein the ions precipitate and exchange of ions takes place. For example, when a solution of barium chloride is mixed with sodium sulphate, a white precipitate of barium sulphate is formed rapidly. These reactions are ionic in nature.
Here are some examples of double displacement reaction: AgNO 3 + NaCl → AgCl + NaNO.
2NaCl + CaSO4 → Na2SO4+ CaCl.
H2SO4 + 2LiOH ⇌ Li2SO4 + 2H2O.
Another element maybe BeCa if you combine them
