Which of these is the most likely electron configuration of a sulfur ion?

a$.1s^{2}2s^{2}2p^{6}3s^{2}3p^4$

b$.1s^{2}2s^{2}2p^{6}3s^{2}3p^6$

c$.1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^2$

d$.1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}4p^6$

Electrons are held together in pairs in the same orbital due to

a$.$ charge

d$.$ wavelength

b$.$ spin

e$.$ repulsion

c$.$ mass

When there is an unequal sharing of electrons between two atoms, this is called

a$.$ non$-$polar covalent bonding

b$.$ ionic bonding

c$.$ polar covalent bonding

d$.$ dipole$-$dipole interactions

e$.$ hydrogen bonding

Intermolecular forces are

a$.$ forces within covalent molecules that hold them together

b$.$ electrostatic forces between ions

c$.$ bonds between hydrogen and oxygen atoms in water molecules

d$.$ attractive forces between separate covalent molecules

e$.$ covalent bonds within a network solid

What would be the shape of a molecule containing a central atom attached to five other atoms with one lone pair of electrons?

a$.$ trigonal pyramidal

d$.$ square pyramidal

b$.$ trigonal planar

e$.$ octahedral

c$.$ square planar

What is another way to write the following equation?

$C_2{H}_{6(g)}{C}_2{H}_{2(g)}+2H_{2(g)}H=3\mathrm{.}2{10}^{2}k\frac{J}{m}ol$

a$.C_2{H}_{6(g)}{C}_2{H}_{6(g)}+2H_{2(g)}+3\mathrm{.}2{10}^{2}kJ$

b$.C_2{H}_{6(g)}+3\mathrm{.}2{10}^{2}kJ{C}_2{H}_{2(g)}+2H_{2(g)}$

c$.$

d$.C_2{H}_{6(g)}-3\mathrm{.}2{10}^{2}kJ{C}_2{H}_{2(g)}+2H_{2(g)}$

e$.$ none of the above

Which statement concerning the accompanying diagram is true?

a$.H$ is positive

b$.$ the system is endothermic

c$.$ the system releases heat to the surroundings

d$.$ the heat content of the reactants is less than the heat content of the products

e$.$ the enthalpy of the products is greater than the enthalpy of reactants

$3$