Predict the following reaction
Kl+Pb(NO3)2->?

The answer to your question is KNO₃  +  PbI₂

Explanation:

Data

Chemical reaction

                      KI  +  Pb(NO₃)₂  ⇒  

Process

We know that this is a double displacement reaction because there are two reactants and each reactant has a cation and an anion (a positive atom and a negative atom or a polyatomic molecule).

To know the products just interchange the cations in each molecule considering the oxidation numbers.

                          K⁺¹I⁻¹  +  Pb⁺²(NO₃)₂⁻¹  ⇒   K⁺¹NO₃⁻¹ + Pb⁺² I₂⁻¹

or

                          KI  +  Pb(NO₃)₂  ⇒  KNO₃  +  PbI₂

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.