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
What is the major ion in seawater? sodium chloride magnesium sulfate
5. How can 100. mL of sodium hydroxide solution with a pH of 13.00 be converted to a sodium hydroxide solution with a pH of 12.00 ? (A) By diluting the solution with distilled water to a total volume of 200 mL (B) By diluting the solution with distilled water to a total volume of 1.00 L (C) By adding 100 mL of 0.10 MHCI (D) By adding 100 mL of 0.10 MNaOH
12. How does the concept of electron transfer explain why sodium and chlorine react to produce sodium chloride?(Hint: Think about the movement of electrons between sodium and chlorine atoms during the reaction.)
2. Use Passage 1 to answer question below. Suppose that in Experiment 2 a solution at a pH of 7.5 had been tested. Based on the results of Experiment 2, the percent recovery of cadmium for that solution would most likely have been: F. between $48\% $ and $80\% $ G. between $80\% $ and $88\% $ H. between $88\% $ and $95\% $ J. between $95\% $ and $100\% $ F G. H. J.
1.Use Passage 1 to answer question below. Based on the description of Experiment 1, when was the graphene separated from the sample liquid by centrifugation? A. Immediately before placing the sample in the water bath B. Immediately after removing the sample from the water bath C. Immediately before the percent recovery of the cadmium was determined D. Immediately after the percent recovery of the cad- mium was determined A B C D
Which statement about asbestos fibers is correct? A. All asbestos fibers are visible without magnification B. Asbestos fibers can be identified by color and texture alone C. Some asbestos fibers are extremely small and require laboratory testing to confirm their presence D. Asbestos fibers are always thicker than a human hair
Which of the following statements describes how water differs greatly from many other substances? It is less dense in its solid form than liquid form. It is a polar covalent molecule. It can change to solid liquid and gas phases. It is comprised of two different elements.
Name the following ionic compounds. Make sure you are in text mode $(''Tt'')$ Do NOT put a space between metal and charge in parentheses if naming a Type II metal ionic compound (i.e. iron(III)) a. $CoCl_{2}$ $\square $
3. How many grams of $Fe_{2}(SO_{4})_{3}$ will be produced from 4.25 moles of Fe? $2Fe+3H_{2}SO_{4}\rightarrow 1Fe_{2}(SO_{4})_{3}+3H_{2}$
Red litmus paper turning blue indicates the prescence of __ ? $Ni(II)$ $Ca(II)$ $Fe(III)$ Ammonium Ion
