Answer:
0.2g
Explanation:
mass=mole/molar mass
molar mass of oxygen is 32
6.06/32=0.19 or 0.2 units=grams
A metal and non metal favor the formation of ionic compounds from element. ionic compounds are formed when between metal and non metal because metal has ability to loss electrons and net positive charge ion to form cation while non metal has ability to gain electrons .form anion and net negative charge ion.
My answer will be B and D
Answer:
1..) The property by the virtue of which the metals can be beaten into sheets.
<u>Malleability</u><u>.</u>
<u>2</u><u>.</u>
<u>I</u><u>.</u><u>Reaction</u><u> </u><u>of</u><u> </u><u>iron</u><u> </u><u>with</u><u> </u><u>copper</u><u> </u><u>sulphate</u><u> </u><u>solution</u>
<u>ii</u><u>.</u>
<em>Iron metal displaces copper from its compound copper sulphate and forms iron sulphate along with copper metal. This reaction is a displacement reaction.</em>
<em>Reaction</em><em>:</em>
<u>Fe(Iron)</u>+CuSO4<u>(Copper Sulphate)</u><u>-</u><u>-</u><u>-</u><u>-</u><u>-</u><u>-</u><u>-</u><u>FeSO4(Ferrous </u><u>Sulphate</u><u>)</u><u>+</u><u>Cu(Copper)</u>
Answer:- The formula tells us that one formula unit of this compound is composed of one calcium atom, two nitrogen atoms, and six oxygen atoms.
Explanations:- Subscripts tell us about the number of atoms of the element for which they are used. For example, here the subscript of Ca is one, it means there is one calcium atom in the given one formula unit.
When we have subscripts inside and outside the parenthesis then they are multiplied and the outside subscript is considered for all the atoms present inside the parenthesis.
Here, for the given chemical formula, the subscript of N is 1 and the subscript present outside is 2. So, 1 x 2 = 2 and for oxygen, 3 x 2 = 6
So, we have one calcium atom, two nitrogen atoms and six oxygen atoms for one formula unit of given compound.