Classification of Elements and Periodicity Questions and Answers

Orbitals which result from solving the Schr dinger wave equation can be represented by ele ictures Match the orbitals below with their kind and identify their shapes Put letters in alphabetical order If none are correct leave the box blank A 1 s orbital 2 p orbital 3 d orbital B s orbitals have a p orbitals have a d orbitals have a C shape shape shape D

rmine the oxidation state of copper in monatomic Tap the arrows to set the value for the oxidation state copper

2 Why was the amount of copper produced used to determine which reaction occurred i e why wasn t the iron sulfate compound measured instead The amount of copper produced was used to determine which realtion occurred because the amount it weighed in grams is the theoretical yield and whatever reaction is closer to the actual yield determines which reaction occured

6 The bond between atoms in a molecule of hydrogen chloride is a lonic b Covalent c metallic d polyatomic

10 Suggest a frontier area in bioinorganic chemistry i e a newer area that will be should be investigated in the coming years

Order the atoms in each of the following sets from the least exothermic electron affinity to the most. (Enter multiple answers as acomma-separated list.) a. N, O, F ________ b. Al, Si, P_______

A chemist adds 210.0 mL of a 2.68 x 10 M zinc oxalate (ZnC₂04) solution to a reaction flask. Calculate the micromoles of zinc oxalate the chemist has added to the flask. Round your answer to 3 significant digits.

A solution is made by dissolving 28.5 g of ammonium nitrite, NH4NO₂, in enough water to make exactly 250, m of solution. Calculate the molarity of each species: NH4NO₂ NH₂ NO₂

Write the net ionic equation for the following molecular equation. 3CuSO4(aq) + 2(NH4)3PO4(aq) —Cu3(PO4)2(s) + 3(NH4)₂SO4(aq)

4. Use the balanced equation given to solve the following problems. 2 KMnO4 + 16 HCl -> 5 Cl2 + 2 KCl + 2 MnCl2 + 8 H₂O b. How many moles of HCl are required to react with 35 grams of KMnO4?

Give all possible values of l for a n=4 sublevel. 1, 2, 3, 4 0, 1, 2, 3 3 4 -2, -1, 0, 1, 2

What feature of Postmodernism is best represented in Maxine Hong Kingston's "No Name Woman"? Truth is absolute and can be discovered through observation Use of dystopian settings to comment on contemporary life Decreasing contact with the actual, physical world A re-examination of the past through a new perspective

Look at the following electron configuration. What principle/rule does it break? [Ar]3d10 4s² 3p6 Aufbau Hund's Rule Pauli's Exclusion Principle

Experimental Procedure, Part C.1. The density of diamond is 3.51 g/cm', and the density of platinum is 21.43 g/cm³. If equal masses of diamond and platinum are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest volume change? Explain or show with a sample calculation.

The social environment described in "A Rose for Emily" is a crucial part of the story's setting an idealized view of Southern society an inconsequential backdrop to the main action a reflection of indifference to one's neighbors

How many electrons would be found in an atom that has the n = 1 and n = 2 energy levels complete filled? 8 4 6 10

If you want to use the examples that several authors have used to prove a point, which of the following would you do? Include them in one parenthetical citation endnote after listing the examples. Examples are treated the same way we would treat common knowledge and are not referenced. Include a citation after each example.

Which of the following is a collective noun? Cabinet Africa water tank

Which of the following would help us understand the purpose of a book? Foreword Index Glossary

Identify the type of verb used in the following sentence. The child fell asleep. Both transitive and intransitive Intransitive verb Transitive verb

Choose the correct answer. Love and anger are examples of _. collective nouns compound nouns abstract nouns

Identify the part of speech of the underlined word. The hungry cat scratched at the back door. Adverb Noun Adjective

Which of the following sources is least likely to be appropriate to use as a scholarly source? Writings by experts recognized as such in their field. Magazine articles. Eye-witness accounts and other forms of first-person testimony.

Which of the following does a broken link or incorrect link on the page indicate? The page is reliable. The page is not updated Information is up-to-date

If you want to add information that could be useful but not critical to your text, which of the following would you do? Conclude your text with it. Mention it as a footnote. Integrate it with your Ideas in the text.

Which of the following is in MLA formatting style? Uzawa, Hirofumi. Economic Theory and Global Warming. Cambridge: Cambridge UP, 2003. Print. Uzawa, Hirofumi. (2003) Economic Theory and Global Warming. Cambridge: Cambridge UP, Print. Uzawa, Hirofumi. Economic Theory and Global Warming. Cambridge: Cambridge UP, Print.

Which of the following is an incorrect designation for an atomic orbital? 1s 4f 3s 2d 2p

The specific heat capacity of liquid water is 4.18 J/g °C. Calculate the quantity of energy required to heat 2.23 g of water from 26.5°C to 83.7°C. (Ignore significant figures for this problem.) 533 J 780 J 247 J 127.6 J 1027 J

What is the volume of 42.0 g of Chlorin gas (Cl₂) collected at 27°C and 456 torr. The universal gas constant R is (0.182L.atm/mole .k, 1atm =760 mmHg)

A solution has [H] = 4.3 x 10-8 M. The pH of this solution is 6.63 6.05 7.37 9.84 none of these

Which of the following statements are true? 1. The number of protons in an element is the same for all neutral atoms of that element. II. The number of electrons in an element is the same for all neutral atoms of that element. III. The number of neutrons in an element is the same for all neutral atoms of that element. I, II, and III are all true. Only I and II are true. Only II and III are true. Only I and III are true. I, II, and III are all false.

Determine the concentration of a solution made by dissolving 11.5 g of sodium chloride in 750.0 mL of solution. 0.148 M 15.3 M 0.197 M 0.262 M 8.6 M

The number of moles in 39.80 g of C₂H6(molar mass = 46.1 g/mol) is 1.658 x 10⁰ 9.552 × 10² 8.633 x 10-1 1.835 x 10³ none of these

Which of the following is not a conjugate acid-base pair? H₂SO4, SO HNO3, NO3 HC₂H302, C₂H₂O₂ H₂PO, HPO HBr, Br

Calculate the pH and pOH of 0.01M HCI solution. (HCI is a strong acid) a) pH b) POH

The present American standard of living is less vibrant poor the richest

An example of an organic compound is: ammonia salt glucose water

A grocery shop has two similar products of two different companies. Product X offers 20% more quantity for the same price offered before. Product Y offers 20% discount off the price of the same quantity. Which is more beneficial to the consumer and how much? 20% of discount, and 125 grams O20% of discount, and 120 grams 20% more of quantity, and 120 grams

The compound that has the greatest polarity is CH3CH2CH2CH2CH2CI CH3CH2CH2CH3 CH3CH2CH2CH2CH2OH CH3CH2CH2CH2CH3

Which one of the following is correct concerning nonnutritive sweeteners? Randomized controlled trials have shown that nonnutritive sweeteners are an effective tool for weight loss. Unrefined cane sugar can be labeled as a nonnutritive sweetener. None of these statements is correct. The presence of a nonnutritive sweetener does not have to be indicated on a food label. Nonnutritive sweeteners may actually be associated with a long-term increase in BMI. Only aspartame has been shown to lead to significant weight loss.

Name the type of chemical reaction that occurs when magnesium chloride solution (MgCl₂) reacts with sodium carbonate solution (Na2CO3). Explain why aluminum (Al) would react with copper chloride (CuCl₂) but not with magnesium chloride (MgCl₂).

Identify the Bronsted acids and bases in the following equation (A= Bronsted acid, B = Bronsted base): HSO3 + CN → HCN + SO3²- A + B -> A + B B + A -> A + B A + B -> B + A B + A -> B + A B + B -> A + A

All three of the boron-fluorine single bonds in BF3 are polar. In which direction should the polarity arrows point? to the right to the left toward the central boron atom away from the central boron atom

Aluminum has a specific heat capacity of 0.90 J/gK and iron has a specific heat capacity of 0.45 J/gK. If you had equal mass samples of the two metals at the same temperature and they both absorbed the same amount of heat, which one would be at the higher temperature? Iron Aluminum

Suppose that an alloy were made from gold and carbon. Identify the type of alloy that would be made and predict how the alloy's malleability would change relative to the original gold metal, and justify your prediction using your understanding of metallic solid structure.

The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process. In the first step, manganese(II) carbonate and oxygen react to form manganese(IV) oxide and carbon dioxide: 2MnCO3(s) + O₂(g). -> 2 MnO₂ (s) + 2 CO₂ (g) In the second step, manganese(IV) oxide and aluminum react to form manganese and aluminum oxidide: 3 MnO₂ (s) + 4Al(s) 3 Mn(s) + 2 Al₂O3(s) Suppose the yield of the first step is 90.% and the yield of the second step is 69.%. Calculate the mass of manganese(II) carbonate required to make 10.0 kg of manganese.

A chemist must dilute 73.1 mL of 2.66 M aqueous Iron(III) bromide (FeBr;) solution until the concentration falls to 2.00 M. She'll do this by adding distilled water to the solution until it reaches a certain final volume.

A chemist adds 475.0 mL of a 0.969M sodium chloride (NaCl) solution to a reaction flask. Calculate the millimoles of sodium chloride the chemist has added to the flask.

97.000 mL of 0.200 M Cu(NO3)2(aq) is mixed with 156.00 mL of 0.400 M NaOH(aq). Assuming 100% yield, what mass (in g) of precipitate will form?

Which of the following correctly lists the types of radiation in the order of increasing energy? a. X rays, microwaves, visible light, infrared b. infrared, radio waves, gamma rays, visible light c. microwaves, ultraviolet, X rays, gamma rays d. infrared, ultraviolet, visible light, gamma rays