Inorganic Chemistry Questions

a catalyst support in acidi 22 which one of the following can not used as a medium Calcium carbonate Al2O3 Zedite Silica

The air in the inner tube of the tire of a racing bike has a pressure of 109 9 psi Convert this pressure to atm O 0 1446 atm O 7 476 atm O 1616 atm O 1 085 atm O 109 9 atm

Match the term with its basic description Heat Work Pressure Internal energy Temperature Choose Choose Average kinetic energy of all particles in a system transfer of thermal energy The force of particles bouncing off of a force acting through distance Sum of all energy in

2 3 sentences discuss examples of good and bad business ethics in the movie

1 Hyperbaric oxygen chambers HBO are used to treat divers with decompression sickness As pressured increases inside the HBO more oxygen is forced into the bloodstream of the patient inside the chamber To work properly the pressure inside the chamber should be three times greater than atmospheric pressure 101 3 kPa What volume of oxygen held at atmospheric pressure will need to be pumped into a 190 L HBO chamber to make the pressure inside three times greater than atmospheric pressure

Write an appropriate discussion for this experiment Include a discussion about the similari ties and differences between the reactions when early representative metals Group 1 Group 2 or zinc react with water and HCl How does the activity series for metals related to your results in this experiment Why is it possible to use the acid base titration to determine the chemical formula of the product formed when calcium reacts with water

Burning 1 82 grams of lactose C12H22O11 in a bomb calorimeter with C 6 95kJ C increases the temperature from 31 6 C to 33 8 C How much heat is released by burning lactose in kJ mol

Rose gold is an alloy mixed metal of gold and copper metals In order to prepare it molten metals of each are mixed together If 335g of copper at 1 180 C is mixed with 212g of gold at 1 510 C at what temperature in C will they reach equilibrium

Temperature is related to the average energy while the energy stored in chemical bonds is a form of energy

for what value of 2 the Magnese Ion have value of magnetic moment UB is zero mot

Ice bag therapy is used by sports trainers to treat muscle injuries If 118 grams of ice are placed in an ice bag how much heat in kilojoules will be absorbed to melt all the ice at 0 Celsius Hint the answer choice is either positive or negative depending on if the energy is absorbed or released The heat of fusion for ice is 334 joules per gram O a 39 4 kJ O b 30 5 kJ O c 31 9 kJ O d 33 7 kJ O e 32 4 kJ

A mixture of xenon and nitrogen gases contains xenon at a partial pressure of 645 mm Hg and nitrogen at a partial pressure of 206 mm Hg What is the mole fraction of each gas in the mixture Xxe XN

Important values if needed for this question need to make an aqueous solution of 0 162 M calcium iodide for an experiment in lab using a 250 mL volumetric flask How much solid calcium iodide should you add grams

Explain why primary standard sodium carbonate should be weighed by difference from the weighing bottle

Incorrect Add curved arrow s to draw step 2 of the mechanism Modify the given drawing of the product as needed and show both products H C Edit Drawing H C CH

In a freezer 551 13 grams of water at 0 C is placed in an ice cube tray How much heat in kilocalories must be removed to form ice cubes at 0 C Hint the answer choice is either positive or negative depending on if the energy is absorbed or released Make sure to include the correct unit symbol with the answer choice The s h of water is one calorie per gram degree celsius the heat of fusion for water is 80 0 calories per gram The heat of vaporization for water is 540 0 calories per gram Oa 40 7 kcal Ob 54 1 kcal Oc 34 1 kcal Od 44 1 kcal Oe 44 1 kcal

The illustration to the left represents a mixture of xenon brown and fluorine green molecules the molecules in the above illustration react to form XeF4 according to the equation e 2 F2 XeF4 the limiting reagent is the number of XeF4 molecules formed is the number of and atoms molecules in excess is

Oforms a basic solution in water reacts vigorously with alkali metals to for is very reactive as a metal consists of diatomic molecules in elemen O is one of the group of the least reactive e Obelongs to a group consisting entirely of

2 Who is the O a a third party b the agency c the borrower d the lender mortgagee

Two beakers are filled with different liquids A steel ball is dropped simultaneously into each beaker 1 1 I 1 I 1 C Drag the slider to see what happens The stopwatch shows the time since the balls were dropped Liquid A Liquid B Note the liquids have the same density What s different about liquids A and B Your answer should be the one or two word name of a physical property S

The end product of the humoral immune response is O Increased pathogen numbers Activated cytotoxic T cells O Antibody production

Sodium Hydroxide Solution NaOH www Metal Cation Ca Zn Pb Cu Cr3 Fe Fo3 Observation must include ionic equation that represents the observed reaction

Aqueous copper II sulfate CuSO4 reacts with solid iron to form aqueous iron II sulfate FeSO and solid copper Write a balanced chemical equation for this reaction m

In a chemical system at equilibrium it is true that O the rate of the reverse reaction exceeds the rate of the forward reaction the concentration of reactants equals the concentration of products the rate of the forward reaction exceeds the rate of the reverse reaction the rate of the forward reaction is equal to the rate of the reverse reaction

A mixture of helium and xenon gases at a total pressure of 775 mm Hg contains helium at a partial pressure of 295 mm Hg If the gas mixture contains 0 473 grams of helium how many grams of xenon are present ax

When a smoldering toothpick was inserted to a tube containing a gas the toothpick flared or reignited Which gas was this OH ON 02

Pyrophosphoric acid H4P207 is a tetraprotic acid Which of the following represent the second acid dissociation for pyrophosphoric acid O A H3P 2071 H O OH H4P207 OB H4P207 H2O H30 1 H3P207 1 O C H3P2071 H O H30 1 H P207 2 O D H P2072 H 0 OH 1 H3P207 1 O E H P2072 H O H30 1 HP207

1 Why is distilled water used in this experiment rather than tap water

Given the following equilibrium equation heat N g 3 F2 g 2 NF3 How would decreasing the size of the reaction container change the equilibrium It would shift the equilibrium to the left and consume more F2 It would shift the equilibrium to the left and make more N It would shift the equilibrium to the right to make more products It would shift the equilibrium to the right and consume more NF3

N why they are adverbs below I accidentally broke the antique vase sitting on the table at the entrance of the house I am very clumsy and often break things ADVERR Tyne here

1 What are the five senses 2 What are the 3 main types of receptors in the body 3 Explain how a stimulus travels to the brain 4 What is the difference between long term and short term memory 5 Describe one memory technique that you learned about

17 What is hypothecation a a pledge of a security without giving up possession b a pledge of collateral or security without giving up possession c an abstract term denoting ownership d a document that provides evidence of ownership or of holding title

2 What are the 3 main types of receptors in the body 3 Explain how a stimulus travels to the brain 4 What is the difference between long term and short term memory

Which of the 3 types of irony does this paragraph use Explain 3 In scary movies the character walks into a house and the audience knows the monster is also in the house TYPE OF IRONY Type here EXPLANATION Type here

On hot days you may have noticed that potato chip bags seem to inflate even though they have not been opened If I have a 450 mL bag at a temperature of 20 0 C and I leave it in my car which has a temperature of 50 0 C what will the new volume of the bag be

20 Which of the following characterizes the type of state Utah is O a intermediate theory state O b mortgage theory state O c lien theory state d title theory state

a Explain how you would prepare the following solutions Include in your answer the amount of the solute weight or volume and the amount volume of the solvent you would use 500ml of 85 ethanol 2 liters of 20 sodium chloride 1 agarose gel for DNA electrophoresis using agarose and Tris acetate EDTA buffer 300ml of fixative made with methanol and acetic acid 3 1 volume volume b Convert the following measurements ml 5 0 ml 25 0 g 0 5 mm kg mm 0 64 ml 33 0 mg 78 0 mm ml mg mm

of the following describes the element He se all that apply reacts vigorously with alkali metals to form salts is one of the group of the least reactive elements consists of diatomic molecules in elemental form is very reactive as a metal forms a basic solution in water belongs to a group consisting entirely of gases mit Answer Retry Entire Group 6 more group attempts r

of the following describes the element F e all that apply belongs to a group consisting entirely of gases is one of the group of the least reactive elements forms a basic solution in water is very reactive as a metal consists of diatomic molecules in elemental form reacts vigorously with alkali metals to form salts

How are senses alike and how are the different

6 In this experiment we have produced one type of soap from mainly unsaturated lipids What properties do you think would change in the soap if we varied the types of lipids

What are the advantages of the Killacycle batteries over lead acid batteries Select all that may apply The batteries have larger atoms to make more energy They have a longer lifespan More electricity can be generated by each battery Lithium batteries charge faster than traditional ones There is only one focused path on which electrons can move

1 A 2 A 3 A It is It is It is substance is one that has UNPAIRED electrons that are ALIG a Slightly repelled in a magnetic field b Attracted to a magnetic field c Strongly attracted to a magnetic field The picture above that best depicts this type of substance is substance is one that has one or more UNPAIRED electrons a Slightly repelled in a magnetic field b Attracted to a magnetic field c Strongly attracted to a magnetic field The picture above that best depicts this type of substance is substance is one that has NO unpaired electrons a Slightly repelled in a magnetic field b Attracted to a magnetic field c Strongly attracted to a magnetic field

The advice impact of the decline of play is that they lose their ability to socialize with others and acting hustle fashion with other people and lose their adventurous nature at 2 00in the video Playing allows them to learn how to work with others in the society And make their adventurous nature bloom Children learn through playing by playing with other children to learn how to behave with other people in a socially acceptable way It is important allow them to play because in a test experiment when the rats did not play they could not socialize other creatures when they put in the same cage they will attack the other rats and act violently at 2 15 in the video

My car has an internal volume of 1600 liters At a temperature of 20 0 C and a pressure of 760 mm Hg how many moles of gas are in my car

Exercise E Combined Gas Law Using the combined gas law Pressure P x Volume V Constant Temperature T calculate the parameter that is missing in each row of the following table Enter the appropriate form of the combined gas law in the first column as shown in the table Be sure to enter the appropriate units for each result and use the appropriate units when calculating the result Equation hel T1 P2 x V2 x T1 T2 300 K P1 x V1 400 K 500 K 400 K Hist P1 2 0 atm 1 50 atm 3 00 atm 760 mm Hg V1 2 0 liters 2 50 liters 6 00 liters 1 0 liter mive T2 1200 K 700 K 400 C 13 0 06 len P2 4 0 atm 3 50 atm 1 5 atm V2 4 0 liters 250 mL 2 00 liters

Erwin Schr dinger Orbitals which result from solving the Schr dinger wave equation can be represented by electro pictures 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

19 Which element is most likely to form a covalent bond hydrogen a lithium b oxygen c caesiumd magnesium 20 Which element is most likely to form an ionic bond with aluminum d calcium

4 8 g of sulfur and 5 4 g of aluminum react based on the chemical equation below and 4 5 g of aluminum sulfide Al2S3 are recovered from the reaction a small amount cannot be recovered 3S 2A1 Al2S3 Determine the percent yield of Al2S3 Molar mass of S 32 06 g mol molar mass of Al 26 98 g mol

Calculate the volume of liquid in the NMR tube sketched below Give your answer in microliters and round to the nearest 1 L A 2 6 mm 1 73 cm L X 5