Rewrite this number in nonscientific notation, to the correct number of significant figures. 5.15 x 102 answer =

Q: Question 13!

A: Since you have posted multiple questions, the answer for question 14 is given below. Kindly repost t...

Q: 2. A solution that may contain Cu, Bi?", Sn*, or Sb* is treated with thioacetamide in an acidic medi...

A: 2. subjective examination Dark encourage halfway disintegrated in basic medium : could be Cu2+ Stayi...

Q: 109.613 pm 216 pm 105.120 pm Not stated

A: Given,  Edge length in BCC  = a Relationship between a and r  4r = (3)1/2a In BCC particles are pres...

Q: K = A B Q = A B Kw = [H3O*][OH ]= 1.00 x 10-14 @ 25°C %3D %3D pH = -log10([H3O*) pOH = -log10([OH-])...

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Q: CH3 R-C-о—ОН (m) H3C- -ċ-CH3 ČH3 (n) + CH3-Ĉ-0-OH

A: Organic reaction are those in which organic reactant react to form organic products.

Q: Click on the scheme on a functional group that may react with benzaldehyde: COOH H2N Selected Coordi...

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Q: CH3 OH H;C. .CH3 но H,C CH3

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Q: Retention time Substance(s) Peak area (%) (min) Crude product Pure product 8.725 1,2-cyclohexanediol...

A: In the analysis of gas chromatography, the evaluation of peak area is one of the most important aspe...

Q: 3. Calculate the mass of ethane, C2H6, which must be burned to produce 120.0 kJ of heat. C2H6(9) + O...

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Q: <Homework #4 - Chapter 15 - Chemical Equilibrium For Practice 15,5 - Enhanced - with Feedback 13 of ...

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Q: For the rearrangement of cyclopropane to propene at 500 °C (CH2)3CH3CH=CH2 the following data have b...

A: In the given question we have to calculate the average rate of disappearance,   

Q: p-dihydroxybenzene and o-dihydroxybenzene can be separated by TLC using a solvent of medium polarity...

A: We know that in a TLC plate if we are using the non-polar solvent then it can form bonds ( attractio...

Q: 1. A solution considered to be slightly volatile and soluble in water has a boiling point of 200.0°C...

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Q: A chemist placed a 1.195 g sample of fuel in a bomb calorimeter which was immersed into 2.00 L of wa...

A: The mass of the fuel sample is = 1.195 g The increase in the temperature of the water is = 20.1oC to...

Q: problem. 1. An alcoholic drink claims 12% alcohol by volume. Calculate the volume in ml of alcohol p...

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Q: The mass of silver hydroxide that is dissolved in 150 ml of a saturated solution is grams.

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Q: The following reaction is spontaneous as writen when the components are in their standard states: 3 ...

A: [Zn2+] = 3 mol L-1 [Cr3+] = ?

Q: 2. The formula for Ferric chloride is......... a) FeCl b) FeCl3 c) CuCl3 d) FeCl2

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Q: Which one of the folllowing samples contains the most atoms? Hint. Think about definitions:I am look...

A: Which one of the following samples contains the most atoms? 

Q: VER AS REQUIRED A. DESCRIBE THE PREPARATION OF THE FOLLOWING SOLUTIONS. Show all pertinent calculati...

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Q: Show what is asked for the following alkanes. 1. Pentane a) combustion b) halogenation 2. Butane a...

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Q: Current Attempt in Progress When 5.64 g of a solid mixture composed of NH,Cl and CaCl, was dissolved...

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Q: <Homework #4 - Chapter 15 - Chemical Equilibrium Exercise 15.48 - Enhanced - with Feedback 22 of 22 ...

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Q: 3. An fcc structured crystal, which area has the most Miller index of atoms per unit area?. Calculat...

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Q: Which of the following will be soluble with water?   Group of answer choices Vegetable Oil Desi Ghee...

A: The solubility of a compound mainly depends on the following factors; Temperature Nature of solute ...

Q: 4. A sample of 0.892 g of potassium chloride (KCI) is dissolved in 54.6 g of water. What is the perc...

A: Since you have asked multiple question, we will solve the first question for you.If you want any spe...

Q: Which of the following will forn a basic solution in water? [Select all that apply] NaCIOalaq) O LIF...

A: Salt of strong base and weak acid is basic when dissolved in water   

Q: Calculate the pH of 0.50 L of a buffer solution consisting of 0.70 M formic acid () and 0.50 M sodiu...

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Q: 2. A solution that may contain Cu, Bi", Sn*, or Sb2* is treated with thioacetamide in an acidic medi...

A: 1)A solution that may contain Cu2+, Bi2+, Sn4+, or Sb2+ is treated with thioacetamide in an acidic m...

Q: In reverse phase chromatography, the stationary phase is ___________ and the mobile phase is _______...

A: Answer of the question given below, 

Q: a what is U List of P Q suffix for PB Prefixes Q What is Q cabrini p Cabrini Porti O Mail - K O Laun...

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium.

Q: The absorbance for a dye sample of unknown concentration is measured and the corrected absorbance is...

A: Given :  y = 0.153 x + 0.043

Q: equilibrium system resulting from each of the following changes: 4 HCI (g) + O2 (g) ⇌ 2 H2O(g) + 2 ...

A: Effect of temperature,  concentration, pressure, catalyst etc. on equilibrium is determined by Le-Ch...

Q: Enter elcrons as The following skeletal oxidation-reduction reaction occurs under acidic conditions....

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Q: What would happen to the cells if a hypertonic solution was injected directly to the bloodstream? ex...

A: Solution is of three types:-  Hypertonic  Hypotonic  Isotonic

Q: thermometer A 54.4 g sample of quartz, which has a specific heat capacity of 0.730 J-g °C, is put in...

A:   Given :    specific heat =   0.730 J/g °c Quartz sample = 54.4g Find : Calculate the initial tempe...

Q: What is the correct expression for the equilibrium constant (K) for the reaction between carbon and ...

A: Equilibrium constant (Kc) in terms of concentration can be defined as the ratio of concentration of ...

Q: An organism had 665 grams of Carbon-14 (a radioactive form of carbon) in it when it died. How much r...

A: Carbon-14  is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neut...

Q: A biogas-plant converts biomass into methane. From a certain substrate, 52% (w/w) methane can be obt...

A: Dear student as you have asked multiple part questions we will solve only first three parts only. Pl...

Q: What is the pH of a 0.450 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

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Q: Cholesterol is a component of the plasma membrane.  Explain the importance of cholesterol in the cel...

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Q: A high-level molecular electronic structure calculation predicts oxygen valence molecular orbitals w...

A: Binding energies for oxygen = 0.5389, 0.60354 and 0.7171 hartree λ = 58.96 nm = 58.96 x 10-9 m 1 har...

Q: the pOH

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Q: These are a class of organic compounds that are easily vaporized and can remain suspended in the air...

A: The volatile organic compounds are the class of organic compound which possess very high vapor press...

Q: The pH of an aqueous solution of 0.176 M ammonium bromide, NH Br (aq), is This solution is

A: 1. Solution - According to the question - pH = pH stand for potential of hydrogen, since pH is effec...

Q: Draw the structures of 5 structural and geometric isomers of dienes with formula C5H8.

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Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite min...

A: First step :  2MnCO3(s) + O2(g) -------&gt; 2MnO2(s) + 2CO2(g)  Second step :  3MnO2(s) + 4Al(s) ---...

Q: 8. Write the product of the reaction in three dimensions and indicate if the methyl groups in the pr...

A: As per guidelines we have to solve only the First question. We have to determine the stereochemistry...

Q: Use the Standard Enthalpies of Formation given to solve for the AHf for C2H6. 2 C2H6 (g) + 7 O2(g) →...

A: 2C2H6(g) +7O2(g) --&gt; 4CO2(g) + 6H2O(g)  

Q: hat is the percent ionization in a 0.530 M solution of formic acid (HCOOH) (Ka = 1.78 × 10⁻⁴)

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.