How many significant figures are in each of these measurements? 71. 93 g, 0.420210 kg

Q: Select the correct statement. A) In an exothermic reaction, the surroundings releases heat. B) If th...

A:

Q: In the given three-dimensional molecular structure, the IC OH N differently colored spheres represen...

A:

Q: Which conditions would most effectively prevent the following reaction from occurring? NH3 (g) + HC...

A:

Q: The rate of a certain reaction is given by the following rate law: rate=k[H,][NH,] rate = Use this i...

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to ...

Q: Describe the process of catalytic cracking used in the petroleum refining industry Your answer must...

A: Petroleum refining use different types of cracking  like thermal and catalytic cracking As you have ...

Q: 1.Write the balanced, net ionic equation for the reaction occurring when (a) Cl is added to a soluti...

A: The ionic reactions are given below

Q: At a given temperature, 2.82 atm of Cl2 and 4.34 atm of Br2 are added into a flask and allowed to eq...

A:

Q: Current Attempt in Progress In the reaction, KHS(aq) + HCI(aq) → KCI(aq) + H2S(g), which ions are th...

A: The given reaction is, KHS(aq) + HCl(aq) ---> KCl(aq) + H2S(g)   The ionic equation for the given...

Q: e rate of a c

A: Since you have asked multiparts, we will solve the first three subparts or you. If you want any spec...

Q: Shown below, Baker spotted the three-component mixture onto a TLC plate and developed it using the s...

A: A question based on analytical separations that is to be accomplished.

Q: QUESTION 10 What is the osmotic pressure (N) of a solution containing 0.125 mol of a nonelectrolyte ...

A:

Q: Using the above pattern, identify the circled electrons using the four quantum numbers. 回回画 [1 March...

A: There are four set of quantum numbers which describes or gives all the information about an electron...

Q: Complex alkanes are named by using the longest continuous chain of C atoms as the basis of the name....

A: Answer of part 1 ,2 are as follows:  

Q: Which one of the equations below represents what happens when HC,H3O2 is dissolved in water? O HC2H3...

A:

Q: "solid potassium chlorate reacts to form solid potassium chloride and gaseous oxygen."

A: Moleculer formula of Potassium chlorate is KClO3  Moleculer formula of potassium chloride is KCl  Mo...

Q: Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or end...

A: Mass of KOH = 10.8 g Moles of KOH = Mass / Molar mass = 10.8g / 56 g/mol = 0.193 mol Mass of solutio...

Q: How many milliliters of 0.0459 MH3PO4 could be completely neutralized by 46.2 mL of 0.136 M KOH? The...

A: Potassium hydroxide reacts with phosphoric acid, to form potassium phosphate and water. The equation...

Q: Give clear handwritten answer- Derive an expression for the time dependence of the degree of polymer...

A: Given that, for a condensation polymerization reaction, the time-dependent rate law is d[M]/dt = -k[...

Q: Part A Dinitrogen tetroxide decomposes to nitrogen dioxide: N204(9) → 2 NO2(9) A, H° = 55.3 kJ mol- ...

A:

Q: 2. A 0.4682 g sample of a metal is dissolved in a total volume of 50.0 mL. a. If the metal was pure ...

A: a) The Ag and KSCN reacts in following way: Ag+KSCN→Ag(SCN) + K  Mass of Ag =0.4682 g Moles of Ag is...

Q: Hypotonic solution is a solution: [A] whose osmotic pressure is less than that of another [B] which ...

A:

Q: Nitrogen and water react to form nitrogen monoxide and hydrogen, like this: N2(g) + 2 H2O(g) → 2 NO(...

A:

Q: The following reaction is monitored as a fraction of time: AB=A+B. A plot of 1/[AB] versus time yiel...

A:

Q: equilibrium constant

A:

Q: When sodium hydroxide, NaOH, is dissolved in water, what processes occur? Select all that apply Hydr...

A: The attraction forces between the different molecules are known as intermolecular forces. Different ...

Q: Give the name of the molecule

A: The given molecule contains a five-carbon atoms chain and a thiol (SH) functional group attached wit...

Q: Solve the following problem: A HeNe laser with an output wavelength of 632.9 nm can be used to excit...

A: Given that, for dodecahexaene 632.9 nm wavelength is used to excite the ground electronic state to t...

Q: The reaction below has a rate constant of 0.0006300 s −1. How long (in seconds) would it take for CH...

A:

Q: QUESTION 3 Which of the following conjugate bases are correct? There may be more than one correct an...

A:

Q: At a certain temperature the rate of this reaction is first order in HI with a rate constant of 7.09...

A:

Q: Which of the following are true?  Chose all the correct answers.     1,3-Cis disubstituted cyclohex...

A: Stereochemistry is branch of chemistry in which we deal with spatial arrangement of atoms in molecul...

Q: Draw an achiral diastereomer of the molecule shown below CH3 Но -- OH H- OH CH3

A: An achiral compound is the compound that must have an superimposable mirror image.  Again, If two co...

Q: What is the change in internal energy for a system undergoing an endothermic process in which 29.2 k...

A:

Q: critical constants

A:

Q: A chemistry student needs 35.0 g of isopropenylbenzene for an experiment. He has available 150. g of...

A: Consider the given information is as follows; Mass of isopropenylbenzene = 150. g                   ...

Q: 1. Write a balanced chemical equation to show the dissociation of Butanoic acid (C3H7COOH). Physical...

A: Given, The balanced chemical equation to show the dissociation of Butanoic acid (C3H7COOH) is: 2. Wh...

Q: N2O4(9) → 2 NO2 (9) A, H° = 55.3 kJ mol- What pe At 298 K, a reaction vessel initially contains 0.10...

A: Given data set: T1= 298 K P= 0.100 bar T2= 373 K ∆H = 55.3 KJ/mol K1= 0.32038 K2= ?

Q: 14 The reduction of iron(III) oxide to iron during steel-making can be summarized by this sequence o...

A: Answer of the question given below, 

Q: 8. The density of nickel is 8.908 g/cm3. If the metallic radius of nickel is 125 pm, what is the str...

A: Concept  n= 1 then Simple cubic structure n= 2 then Body centered structure n = 4 then Face centered...

Q: Which of the following pairs of compounds are labeled correctly. . CI enantiomers CI enantiomers CI ...

A:

Q: For the following reaction, H2(g) + I2(g) ⇌ 2 HI(g), Kp = 44 at 25.0 o C. Calculate the value of Kc

A:

Q: An equilibrium constant describes the ratio of products over reactants in a particular situation. In...

A: A question based on equilibrium concept that is to be accomplished.

Q: Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of ...

A: For reaction ., 2NH3 --------> N2 + 3H2  Rate constant , K = 0.0096 M/s Reaction follow zero orde...

Q: Convert the titrant into desire Totally convert analyte into de form Shou

A: We know that, Preoxidation is defined as it will oxidised in advance of other process. Prereduction ...

Q: C7H12O4 I need help answering 2 3 4 5  For IHD please show step by step   ir analysis: absorption...

A: Given that, the molecular formula of the molecule is C7H12O4. 2. So, the required DU (IHD) is  DU = ...

Q: In the resonance form of ozone shown below, the formal charge on the cen- oxygen atom is ... .. 0 0 ...

A: Formal charge is define as the charge on the atom appears after forming bonds with atoms. The formul...

Q: Normal No Spacing Head 三三。 Paragraph Styles 22. A normal adult jawbone contains 200 mg of Carbon-14 ...

A:

Q: The rate of a certain reaction is given by the following rate law: rate=k[N,][H,] Use this informati...

A: Chemical kinetics can be defined as the branch of chemistry that deals with rates of chemical reacti...

Q: standard free energy change

A:

Q: How many atoms are in 4.50 mol of potassium? 4.50 mol = atoms How many moles are in 5.94 x 1024 atom...

A:

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.