What is Leucippus contribution atomic theory?

Q: Oxygen gas can be produced by the decomposition of Hydrogen peroxide (H2O2) H2O2 (l) → H2O (l) + O2 ...

A: Hydrogen peroxide decomposes into hydrogen and oxygen gas. The equation for the balanced chemical re...

Q: One liter of a 1g/ml NaOH solution has more Na molecules than K molecules in one liter of a 1g/ml KO...

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Q: 4) A 11.31 g sample of a competitor's "SonicBloom" fertilizer is analyzed for its phosphorus content...

A: #4(a): Given the mass of fertilizer sample taken = 11.31 g Mass of the P containing precipitate, MgN...

Q: I'm not sure on how to define the following terms: hydrate, desiccant, deliquescent.

A: A compound can be defined as the  substance that is formed by combination of two or more different c...

Q: The Keg for the reaction: A + А+В +} АB is 41 What is the Keg for AB + A + B ? В ?

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Q: Explain how you would synthesize the following organic molecule. Be sure to list the name of the org...

A: Organic synthesis involves strategies for making compounds from readily available starting materials...

Q: ОН CI HCI (aq) 99% S 35% S 65% R

A: SN1 followed by nucleophilic substitution. Firstly Carbocation are formed , after H2O+ molecule will...

Q: At 148.9 °C, the Keq for the reaction: 1 A + 3 B +> 5 AB is 4.19 · 10-5 What is K,? Enter your answe...

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Q: A solution made by dissolving 7.58 g of a nonvolatile, nonelectrolyte organic compound in 90.0 g of ...

A: The molecular weight of the solute can be calculated by using the colligative properties, elevation ...

Q: 3. The spin-decoupled 1°C NMR spectrum of an unknown compound contains a peak near 8 210 ppm, and a ...

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Q: (a) Oxygen demand is an important parameter for assessing the extent of organic pollution in water. ...

A: #(a): (iii): Given the volume of water sample taken for analysis = 50 cm3  Chemical oxygen demand(CO...

Q: 1. Under the same conditions of temperature and pressure, how many times faster will hydrogen effuse...

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Q: How are hydroelectric plants damaging to the ecosystem?

A: Hydroelectric system is very much useful in generating current without any pollution. But there are ...

Q: Methanol, CH3OH, is a promising fuel that can be synthesized from carbon monoxide and hydrogen accor...

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Q: A. What are the commons causes of fire at home? (at least 2) 1. Materials should explain its physica...

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Q: What would be the major product obtained from the reaction of Br2 with 1-butene if the reaction were...

A: This is bromination reaction. Alkene react with bromine to give dibromo compound

Q: How will the potentiometric titration curve of EmV over volume dichromate for the redox reaction of ...

A: A question based on redox reaction that is to be accomplished.

Q: how many atoms of calcium are present in 84.1g of calcium

A: Given,  The number of calcium atoms present in 84.1 grams of calcium is:

Q: Why do you think that the surrounding temperature of ice cubes is cold and has condensation? What pr...

A: The surrounding temperature of ice cubes is cold.

Q: 1. What is the boiling point of 2.05 molal acetone solution (CH.O)? (Boiling of Acetone = 56.2 °C, K...

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Q: According to VSEPR theory , in which fashion will the bonds and lone pairs of electrons be arranged ...

A: Given: The following molecules or ions: 1. ICl3 molecule  2. ClO2- ion    3. AlCl3 molecule  The man...

Q: Mechanism of Possible Action Specific Use Dehydrating agent Description Preventive Toxicity measures...

A: Since you have asked a question with multiple subparts we will answer the first one for you. To get ...

Q: Fe+ (aq) + SCN (aq) = FeSCN²+ (aq) A solution is made containing an initial Fe+] of 1.2 × 10-3 M and...

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Q: Consider the following reaction: SO2 Cl2 (g) = SO2 (g) + Cl2 (9) A reaction mixture is made containi...

A: kc is the ratio of  product of concentration of products raised to their stoichiometric coefficient ...

Q: A chemist measures the enthalpy change AH during the following reaction: 2 Al(OH)3(s)→Al,03(s) + 3 H...

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Q: provide the correct IUPAC NAME FOR TeBr6.

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Q: List the following aqueous solutions in order of increasing boiling point: 0.120 m glucose, 0.080m L...

A: ∆Tb = i Kb m Kb = 0.512 oC/m ∆Tb = Boiling point of solution - boiling point of solvent 

Q: of of of redict whether S1 or Sy2 will be the primary substitution Nal in H20 SN2 LNS HO HO SN1 SN2 ...

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Q: A galvanic cell is set up by immersing a silver electrode in 1.0 M silver ion solution to form one h...

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Q: For spectrophometric method to be viable, which of the following must be met? a. A high MW complex ...

A: Spectrophotometry is a term which refers to the quantitative analysis of spectra to compare the rela...

Q: In a carbonic acid buffer system, the total acid concentration is 0.55 M and the pH is 10.0. Calcula...

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Q: thanol is used as disinfectant. 70% of solution is consider a concentration that disrupts biological...

A: Ans. A concentration of about 70% ethyl alcohol is most effective for killing germs. In general, sol...

Q: Name Compound Formula & charge & charge ammonium acetate "sodium bicarbonate aluminum-perchlorate po...

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Q: What is the major product obtained from hydroboration–oxidation of 2-methyl-2-butene? Draw the molec...

A: Hydroboration–oxidation reaction: Alkene gives an electrophilic addition reaction with borane. Alken...

Q: Lewis Structure Number of valence electrons Molecule/ion N2 SO3

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Q: It was found that for the reaction 2 A + B → 3 C the rate law is Rate = k[AF[B] · At the initial con...

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Q: Convert 5678m to kilometers

A: To convert m to kilometres  divide the length value by 1000. 1000 m = 1 Kilometres

Q: What did you observe with the freezing point of naphthalene when you added p dichlorobenzene?

A: Answer - According to the question - We  observe with the freezing point of naphthalene when you add...

Q: Why is it thermodynamically incorrect to say that the refrigerator door must be  kept close because ...

A: A question based on chemical thermodynamics that is to be accomplished.

Q: + CH;CH2CCH3 CH;CH2CH2CH CH;CH2CH | CH3 H CH3

A: List the following carbocations in each set in order from most stable to least stable:

Q: more energy. Can someone explain please

A: The product which requires less activation energy. i.e. rate of reaction is fast.Kinetically control...

Q: Which of the following is easiest to deprotonate? a. CH4 b. CH3CH3 c. CH2=CH2 d. HC=CH

A: If we consider the conjugate bases of each of the following  CH4 --------->  CH3-  (sp3 hybridize...

Q: What is the mass of KCIO3 that can be dissolved in 200g of H20 at 90° C?

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Q: The molar solubility of silver chromate, Ag2CrO4, in water at a certain temperature is 6.9 x 105 M. ...

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Q: What mass of NH4C1 can be dissolved in 195g of H2O at 70° C?

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Q: 14. A solution of sulfuric acid in water, containing initially 73.13% by weight of H;SO4, is diluted...

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Q: How can O2 interact with a metal as a ligand? Hint: think in terms of sigma and pi bonding motifs. W...

A: A question based on molecules that is to be accomplished.

Q: Determine the activity coefficients and effective concentrations (activities) of Na+ and Ca2+ ions i...

A: First, we have to find the ionic strength(μ) of the solution, and then we can find the activity coef...

Q: For the reaction below, Keg = 2.62x10-7 (at 1000. C). If you place 12 atm of nitroger gas and 36 atm...

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Q: A solution is prepared by mixing 290 mL of 0.700 M NH3 and 170 mL of 0.700 M HCI. Assuming that the ...

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.