A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.) Fill in the missing part of this equation. (-82 x 10° c) D= ?= x10

Q: A gas STP occupies 28cm3 of space. If the pressure changes to 3.8 atm and the temperature increases ...

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Q: 2.SO2 t Oz → 2S03 If 42019 of 80z reacts with 28-6g Df 0z be how produce!? many grams of SDg oil

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Q: How many electrons can be assigned to orbitals designated by the quantum numbers n = 5, l = 1?

A: The value of two quantum numbers i.e. n and l is given . We are required to predict the number of el...

Q: В

A: The basic rules of IUPAC naming are- 1. Find the longest C chain containing the functional group. 2....

Q: 50.00 mL of a solution containing both Ni2* and Pb²+ ions requires 46.32 ml of a 0.02041 M EDTA solu...

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Q: Based on the Ellingham diagram below, which metal is least stable at 400°C

A: Ellingham diagram is the plot of free energy of oxide formation of metals vs temperature. Those pres...

Q: Which following ions has the same electron configuration as a noble gas? A) C B) O2+ C) CI* D) P2- E...

A: Electrons are filled in a different atomic orbital in an atom. According to the Aufbau rule, the ele...

Q: An example of a balanced chemical equation is Water - Hydrogen Gas + Oxygen Gas 2H20 2H2 + 02 1. H,0...

A: 2H2O =  2H + O2 REACTANT GAINS OF ELECTRONS

Q: nickel to 97.93 °C and then drops it into a cup containing 75.96 grams of water at 20.90 °C. She mea...

A: Given :  Mass of nickel = 69.43 gm  Initial temperature of nickel = 97.93 °C  Mass of water = 75.96 ...

Q: The yield of a chemical process, expressed in percentage of the theoretical maximum, is measured wit...

A: Answer : Manual calculation if we prepare the table :   Catalst A Catalst B Catalst C   79.2 81...

Q: How many valence electrons are in a neutral atom of nitrogen and  How many valence electrons are in ...

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Q: Make a list of the properties of ACID. Explain why each is helpful.

A: Acids are the substance which donates H+ ion when dissolved in water 

Q: 1. Given the following reaction: H2+ I2 2HI If the equilibrium [HI] is 0.060 M and the equilibrium [...

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Q: Draw a diagram (picture) showing the principle species in solution as a function of pH for a mixture...

A: Formic acid dissociates as:   HCOOH↔HCOO-+H+                           (1)pKa,formic acid=3.75

Q: Identify the type of equation and balance the equation: I.KCIO3 J.Li+H20

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Q: The equilibrium constant, Kc, for the reaction below is 0.362 at 100°C. 2NO2(g) ↔ N2O4(g) What is ...

A: Given :-  2NO2(g) ↔ N2O4(g)  ; Kc = 0.362  To be calculated :-  Value of Kc for N2O4(g) ↔ 2NO2(g)   

Q: Distinguish between a temporary and a permanent emulsion in food preparation.

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Q: A sample of a neon is at 89 degrees Celsius and 123 kPa. If the pressure changes to 145 kPa and the ...

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Q: You have 500 mL of a 0.10 M NaCl solution. You dilute the solution to a new volume of 1 L. What is t...

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Q: Consider these electron transitions in a hydrogen atom: I. n = 2 →n = 1 II. n = 3 →n = 1 III. n= 1 →...

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Q: Calculate the molarity of a 12 L solution containing 318 g of sodium carbonate.

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Q: Bacardi-151 is a drink that contains enough ethanol to be a fire hazard. It has roughly around 75% (...

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Q: Write all pertinent computations to justify your final answer Many antacids contain aluminum hydrox...

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Q: elect True or False: At a given temperature, O2(g) at 5 atm has a higher entropy per mole than O2(g)...

A:                          Answer  The entropy of the system decrease with an increase in pressure  

Q: Determine the normalized wavefunction for the following function with 0 < x < 2n and k = 40. 4(x) = ...

A: A NORMALIZED HAVE A VALUE 1 UNDER A VOLUME COMPONENT

Q: Which of the following atom does belong to lanthanide group? Group of answer choices A.) U: Z = 92 B...

A: Given :-  A.) U: Z = 92 B.) Hg: Z = 80 C.) Ce: Z = 58 D.) Cs: Z = 55    To identify :- a lant...

Q: 68. The reaction (CH3), CBr + OH → (CH3),COH +Br¯ in a certain solvent is first order with respect t...

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Q: the AH°, ΔSO.

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Q: A commercial bleaching solution contains 13.6% (v/v) of sodium hypochlorite, NaOCI. What is the volu...

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Q: Consider the equilibrium system described by the chemical reaction below. At equilibrium, a sample o...

A: Relation between kc and kp Kp = Kc (RT)^n

Q: 1-bromo-2-methybutane is treated with Grignard Reagent. Write the two steps chemical reaction.

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Q: An endothermic dissolution reaction will be spontaneous at high temperatures. Select one: O True O F...

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Q: NH2 H. HO N- OH S.

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Q: Given the reaction below and its reaction mechanism: 2A + 2C-> F+2E Step 1: A + A B k1/k.1 (fast) S...

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Q: е РОН fo e

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Q: Iron (III) oxide, Fe2O3(s), is more commonly known as rust.  Show all calculations and a full soluti...

A: a.) For this part , i think we need to calculate the amount of iron in 77.2 g iron(III) oxide sample...

Q: Label these from most acidic (1) to least (5)

A:   Proton (H+) donars are acidic in nature  Acidity of phenols and carboxylic acid s  can be explain...

Q: A) Which of the following bonds would dissolve well (be soluble) in water? Explain your choices. a) ...

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Q: Darren wants to use a single wall carbon nanotube to make semiconductor channel of a field effect tr...

A: Tubes made up of carbon with diameters typically measured in nanometers are known as CNT or carbon n...

Q: Fill in the missing chemical formulae in the tables below. acid conjugate base base conjugate acid H...

A: The species that accept the hydrogen ion are conjugate acids and the species from which the proton i...

Q: If the pressure was increased for the following reaction that was at equilibrium, how will the equil...

A: Equilibrium tries to suppress the change whenever external forces are present as changing temperatur...

Q: 2) Determine which of the two molecules below has a higher boiling point. Be sure to discuss intramo...

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Q: 1. Circle the structure that corresponds to the given IR spectrum, mass spectrum, coupled 3C NMR spe...

A: IR provides the information of unknown functional groups of the compound. Mass spectra provides the ...

Q: Balancing Redox Reactions:

A: Follow these steps to balance the equation- 1. Find the oxidation no of each atom 2. Balance the cha...

Q: Consider a solution of MgCl2(aq) with a molality of 0.00245 mol kg-1 Calculate the freezing point of...

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Q: What type of reaction it is and balance the equation: K.LiOH I.Mg+O2

A: Balanced chemical reaction are those in which number of atoms on left hand side and right hand side ...

Q: What does the following image represent? The Basic Parts of A GHS-Compliant Label n-Propyl Alcohol U...

A: Answer :

Q: T1 T2 T3 Initial Volume of NaOH (mL) 0.00 3.95 7.95 Final Volume...

A: Molarity and Volumes can be calculated according to the given formulaes

Q: Identify: - Element in Group IVA that has the lowest atomic size - Element with a valence configur...

A: The atomic radius of a chemical element is the mean distance from the center of the nucleus to the b...

Q: order

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.