Calculate the value of E^circ and Delta G^circ for the following reaction. 2Fe^2+(aq)+Br_(2)(aq)leftharpoons 2Fe^3+(aq)+2Br^-(aq) K=4.85times 10^10
Hybrid orbitals can be occupied by electrons in isolated atoms all have the same shapes and energies when formed around a single central atom have similar shapes to s, p, and d orbitals in isolated atoms create sigma and and n bonds pi
Valence bond theory describes covalent bonds as the overlap of half-filled orbitals with electron pairs localized between two bonded atoms uses a combination of atomic orbitals to create molecular orbitals with electrons delocalized throughout the entire molecule creates bonding and anti -bonding interactions based on which orbitals are filled correctly predicts paramagnetism in molecules
Question 22 (8 points) Match each orbital type with the maximum number of orbitals possible: square porbital square d orbital square forbital square s orbital 1. 1 2. 3 3. 7 4. 5 5. 9
Match each process with whether it is endothermic or exothermic: square A candle flame 2 square The freezing of water square v The combustion of butane square v Photosynthesis square pack used for injuries The chemical reaction in a cold square The vaporization of rubbing alcohol 1. Endothermic 2. Exothermic
Rank the types of intermolecular forces below from weakest (1) to strongest (4) Answer Ion-lon Interactions Answer Dispersion Forces Answer Dipole-Dipole Interactions Answer H-Bonding
For the reaction: P_(4)(s)+3H_(2)O(l)leftharpoons 2PH_(3)(g)+P_(2)O_(3)(g) At equilibrium, the reaction contains concentrations of: P_(4)=1.20M H_(2)O=4.50M PH_(3)=3.50M P_(2)O_(3)=1.50M Determine the value of the equilibrium constant K Answer
Which is an lonic solid? Multiple Choice KCI Cu SiO_(2) rubber
A gaseous form of any substance that is solid or liquid when at normal room temperature is known as a/an: gas mist vapor fume
Based on the activity series provided, which reactants will form products? Fgt Clgt Brgt I Cu_(2)+Br_(2)arrow Cl_(2)+AlF_(3)arrow Br_(2)+NaClarrow CuF_(2)+I_(2)arrow
Given the following reactions and corresponding $\Delta H$ values, find the $\Delta H$ (to the nearest whole \#) for the reaction: $H_{2}SO_{4}(l)\rightarrow SO_{3}(g)+H_{2}O(g)$ $H_{2}S(g)+2O_{2}(g)\rightarrow H_{2}SO_{4}(l)$ $\Delta H=-235kJ$ $H_{2}S(g)+2O_{2}(g)\rightarrow SO_{3}(g)+H_{2}O(l)$ $\Delta H=-207kJ$ $H_{2}O(l)\rightarrow H_{2}O(g)$ $\Delta H=44kJ$ $\square $
Convert $4.68\times 10^{25}$ atoms $PBr_{3}$ to mol
Which of the following best describes a mixture? a material that is made up of many molecules a substance that can be changed into another substance a material that contains two or more substances a substance that has been broken down into Its smallest parts
What is used to of a hope of sixes in a a compound heard on the chermal reme? the periodic table prefixes chemical symbols the IUP AC
40. Using the hyphen form of symbol writing write the name of this atom. ${}_{9}^{19}F^{-1}$
Which of the following will not increase 1 point the rate of a chemical reaction? increasing surface area stirring decreasing the temperature increasing the concentration A __ is a substance that increases the rate of a reaction without being consumed. __ 1 point A(n) __ slows down the rate of a reaction. __ is a substance that 1 point
Use molecular orbital theory to determine the bond order in $H_{2}$ o 2 1 3
What partie should be used for the caygin akan when maning the characal formuls $SO_{2}?$ $\square $ disappointed mono- pent.
What happens to the pH of a buffer solution if it is diluted by adding more water? A) pH increases B) pH decreases C) pH remains the same D) pH becomes 7 E) It depends on the starting volume of the buffer
What is the chemical formula for lead (II)sulfate? $Pb_{3}(SO_{4})_{2}$ $PbSO_{4}$ $Pb_{3}(SO_{3})_{2}$ $PbSO_{3}$
