PF3 shows that the central phosphorus atom has __________ nonbonding and __________ bonding electron pairs. A) 3‚ 1 B) 3‚ 3 C) 2‚ 2 D) 1‚ 3 E) 1‚ 2 6. The formal charge on nitrogen in NO3- is __________. A) -1 B) -2 C) +2 D) +1 E) 0 7. How many equivalent resonance forms can be drawn for SO2 without expanding octet on the sulfur atom (sulfur is the central atom)? A) 3 B) 1 C) 2 D) 4 E) 0 8. Using the table of average bond energies below‚ the ΔH for the reaction is __________ kJ
Premium Molecule Atom Electron configuration
(if applicable) d) Nutritional Importance e) Part of the Plant Used (if applicable) f) Storage Required g) Suggested ways to serve or prepare (must include 3 different recipes from the one you prepare in front of the class). h) How to Select When Buying i) Pictures of your selected food PART B: POSTER The poster will be created on a large sheet of Bristol board. The poster should include all of the information found in your report in point form with appropriate illustrations
Premium Demonstration Report Cooking
Q.: 1: The manuscript for this book was typed for free by a friend. Had I hired a secretary to do the same job‚ GDP would have been higher‚ even though the amount of output would have been identical. Why is this? Does this make sense? A.: 1: If a secretary were hired to type the manuscript‚ they would have had the opportunity to provide a service at a price. We know that each good and service produced and brought to market has a price. That price serves as a measure of value for calculating total
Premium Gross domestic product Value added Supply and demand
Everything you need to know about hydrocarbons INTRODUCTION: organic chemistry Organic chemistry is the chemistry of compounds that contain carbon and hydrogen. The element carbon has a special role in chemistry because it bonds with other carbon atoms to give a vast array of molecules. The varity of molecules is so great that we find organic compounds in many common products we use‚ such as gasoline‚ medicines‚ shampoos‚ plastic bottles‚ and perfumes. The food we eat is composed of different
Premium Methane Carbon Hydrocarbon
added to an element Y. (i) Is Y getting oxidized or reduced? (ii) What charge will Y have after the addition of electrons? (iii) Which electrode will Y migrate to during electrolysis? Ans : - (i) Reduced (ii) Negative (iii) Anode Q. 7. Explain how electrolysis is an example of redox reaction. Ans.: - A redox reaction is one in which reduction and oxidation occurs simultaneously. (i) Cathode (Reducing electrode) : – At cathode‚ the cations gain electrons to form neutral atoms. As electrons
Premium Electrochemistry Electrolyte Electrolysis
12U Equilibrium Unit Test Multiple Choice K/U Identify the letter of the choice that best completes the statement or answers the question. ____ 1. When solid lead(II) phosphate is in equilibrium with its ions‚ the ratio of lead(II) ions to phosphate ions is which of the following? a. 1:1 d. 2:3 b. 1:2 e. 3:2 c. 2:1 ____ 2. In a saturated solution of silver phosphate‚ the concentration of silver ion is 4.5 10-4 mol/L. The Ksp of silver phosphate would be which of the following
Premium PH Ammonia Acid dissociation constant
Explain the effects of the Purges? Introduction The Great Purge was a campaign of political repression in the Soviet Union orchestrated by Joseph Stalin from 1934 to 1939. It involved a large-scale purge of the Communist Party and government officials‚ repression of peasants and the Red Army leadership‚ and widespread police surveillance‚ suspicion of "saboteurs"‚ imprisonment‚ and arbitrary executions. 1st Para Scientists‚ Doctors and Engineers‚ were heavily targeted‚ imprisoned and killed.
Premium Soviet Union Great Purge Joseph Stalin
Abstract By adding HCl to 2-methyl-2-butanol‚ through the Sn1 mechanism‚ 2-chloro-2-methylbutane is formed. Water‚ sodium bicarbonate and NaCl(aq) were then added to the 2-chloro-2-methylbutane to remove any of the excess water from the reaction. To confirm‚ a successful reaction‚ AgNO3 was added to the 2-chloro-2-methylbutane. A white precipitate formation confirmed a successful Sn1 reaction. Introduction Nucleophilic substitution reactions such as Sn1 and Sn2 allow us to convert one functional
Premium Alcohol Functional group Chemical reaction
Teaching AS Chemistry Practical Skills w w w e tr .X Appendix 2 m eP 3. How much iron is there in an iron tablet? – Student Sheet In this practical you will have the opportunity to perform a quantitative analysis using the technique of titration. You are going to analyse an iron tablet to find out how much iron is actually present in it. Titrations involving potassium manganate(VII) may form part of your Practical Assessment. Intended lesson outcomes By the end of this practical you
Premium Titration Iron
of the following structures is different from the other three? Explain. 4. (a) Place asterisks at all of the asymmetric carbon atoms in the molecule shown below (prostacyclin). (b) Based on the number of asymmetric carbons‚ how many stereoisomers of prostacyclin are possible? 5. Hydrogenation of an alkene will yield an alkane. The alkane formed by hydrogenation of (S)-4-methyl-1-hexene (I) is optically active‚ while the one formed by hydrogenation of (S)-3-methyl-1-pentene
Premium