(1) bromine (3) francium
(2) cesium (4) iodine
Answer:
The volume occupied by 2.18 moles of is 48.832L
Explanation:
The volume occupied by 1 mole of is 22.4 L
The volume occupied by 1 mole of any gas is 22.4 L
The number of moles of = 2.18 moles
The volume occupied by 2.18 moles of :
Hence, the volume occupied by 2.18 moles of is 48.832L
2. decreasing mass
3. increasing volume
4. all of the above
Answer:
1. Increasing temperature
Explanation:
Hope this helps.
The diatomic oxygen has been more stable than the atom of oxygen due to the presence of a covalent bond.
The oxygen has been the nonmetal with 6 valence electrons. In order to attain a stable configuration, oxygen has to gain 2 electrons.
The elemental oxygen present in nature has been diatomic oxygen. The diatomic oxygen has been formed by the sharing of the 2 electrons of each atom resulting in the formation of the covalent bond.
The covalent bond formation helps the oxygen atom to attain the noble gas configuration. Thus, diatomic oxygen has been more stable than atomic oxygen.
For more information about the stability of the oxygen, refer to the link:
Answer:
Both atoms in an O2 molecule have achieved a noble gas electron configuration. – An oxygen atom does not have a stable octet of valence electrons.
Explanation:
metal
gas
H+
OH-
nitrogen
OH- is common to bases.
Explanation:
The base is a is an ionic compounds which when placed in aqueous solution dissociates in to a cation and an anion OH-.
The presence of OH- in the solution shows that the solution is basic or alkaline.
From Bronsted and Lowry concept base is a molecule that accepts a proton for example in NaOH, Na is a proton donor and OH is the proton acceptor.
A base accepts hydrogen ion and the concentration of OH is always higher in base.
There is a presence of conjugate acid and conjugate base in the Bronsted and Lowry acid and base.
Conjugate acid is one which is formed when a base gained a proton.
Conjugate base is one which is formed when an acid looses a proton.
And from the Arrhenius base Theory, the base is one that dissociates in to water as OH-.
Answer:
metal and OH-
Explanation: