-A molecule consists of two or more atoms that are chemically joined together
Example of molecule: H2 (molecular hydrogen); it has two hydrogen atoms
-A compound IS a molecule that consists of two different types of elements
Example of compound: H2O (water); it has two hydrogen atoms and one oxygen atom
Answer:
Option A
Explanation:
Number of millimoles of Na3PO4 = 1 × 100 = 100
Number of millimoles of AgNO3 = 1 × 100 = 100
When 1 mole of Na3PO4 is dissociated we get 3 moles of sodium ions and 1 mole of phosphate ion
When 1 mole of AgNO3 is dissociated, we get 1 mole of Ag+ and 1 mole of NO3-
As Ag+ concentration is negligible, the dissociated Ag+ ion must have form the precipitate with phosphate ion and as number of moles of Ag+ and phosphate ion are same, therefore the concentration of phosphate ion must be negligible
Here as 100 millimoles of Na3PO4 is there, we get 300 millimoles of Na+ and 100 millimoles of PO43-
And as 100 millimoles of AgNO3 is there, we get 100 millimoles of Ag+ and 100 millimoles of NO3-
∴ Increasing order of concentration will be PO43- < NO3- < Na+
1) No. of atoms of all elements participating in the reaction are to be balanced.
2) Pressure Change should be noted (because, if ∆P≈0, it shows the reaction is in equilibrium).
3) The theoretical representation of the reaction should be balanced well.
<h3><u>Answer;</u></h3>
C. 300 N
<h3><u>Explanation</u>;</h3>
From Newton second's Law of motion, the resultant force is directly proportional to the rate of change in momentum.
Therefore;
F = ma ; where F is the resultant force, m is the mass and a is the acceleration.
Therefore;
F = 0.06 kg × 5,000 m/s/s
<u>= 300 N</u>
Al (Group 13, Row 3) Al = [Ne] 3s^2 3p
Si (Group 14, Row 3) Si = [Ne] 3s^2 3p^2
S(Group 16, Row 3) S = [Ne] 3s^2 3p^4
Ga (Group 13, Row 4) Ga = [Ar] 4s^2 3d^10 4p
Ge (Group 14, Row 4) Ge = [Ar] 4s^2 3d^10 4p^2
As (Group 15, Row 4) As = [Ar] 4s^2 3d^10 4p^3
Se (Group 16, Row 4) Se = [Ar] 4s^2 3d^10 4p^4
Cd (Group 10, Row 5) Cd = [Kr] 5s^2 4d^10