Which postulate(s) of Dalton's atomic theory of matter is/are NOT true? I. Atoms of a given element are identical II. Atoms are indestructible III. Atoms combine in simple ratios to form compounds A) I only B) II only C) III only D) Both I and II

Q: They are similar to covalent in that electrons are shared in the electron se They are similar to…

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Q: In the reaction: CH3Br + OH →>> CH3OH + Br when the [OH] is doubled while the [CH3Br] is unchanged…

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Q: 3. calcium nitrate + aluminum chloride → Molecular Reaction: 4. magnesium + silver acetate → O:Hor…

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Q: Question 41: Predict the product of the following reaction. Br CH3 NaNHạ, NHa

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Q: write the net ionic equation for reaction of sulfate ion with Ca(NO3)2

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Q: Consider the reaction.   2Pb(s)+O2(g)⟶2PbO(s)2Pb(s)+O2⁡(g)⟶2PbO(s)   An excess of oxygen reacts…

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A: Fractional distillation is a purification or separation technique used to get extra pure solvent.

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Q: 6. 0.75 moles of aluminum sulfate dissolve in 525.0 mL of water per the reaction: Al2(SO4)3 (s)→…

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Q: Make an outline of the separation of the following cations into their respective groups: a. mercury…

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Q: The enthalpy of vaporization for methanol is 35.2 kJ/mol. Methanol has a vapor pressure of 760 torr…

A: Clausius Clapeyron equation: lnP2P1 = ∆HvapR×(T2-T1)T1T2

Q: Formic acid (BP = 101 °C) and water (BP = 100 °C) form a negative azeotrope boiling at 107 °C at 78%…

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Q: 9. What is the pH of 0.1 M Acetic acid (HO-Ac) whose Ka is 1 X10-5 (a) 13 (b) 11 (c) -3 (d) 3 O a O…

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Q: Sucrose or table sugar has the formula C12H22O11. What is the mass of 1.00 x 10²⁰ molecules of…

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Q: 3) A solid sample containing Fe² and weighing 1.923 g is titrated with 37.86 mL of a 0.0244 M MnO,…

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Q: Weight of crude/pure product: 0.819/0.047g Percent yield: Theoretical Yield: Melting Point…

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Q: 36 > Macmillan Learning A current of 6.00 A is passed through a Sn(NO3), solution. How long, in…

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Q: If you dilute 35.0 mL of 1.00 M hydrochloric acid to 800. mL, what is the molar concentration of the…

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Q: Part III. Structures of Organic Compounds Direction: Draw the condensed structural formula of the…

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Q: Consider the reaction.   2Pb(s)+O2(g)⟶2PbO(s)2Pb(s)+O2⁡(g)⟶2PbO(s)   An excess of oxygen reacts…

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Q: A student ran the following reaction in the laboratory at 666 K: 2NH3(9) ? N₂(g) + 3H₂(g) When she…

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Q: Write the equation for the following reactions: a. 2-butene + HCI b. 1,2-dichloro-1-propene + water…

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Q: the process of sublimation happens when which of the following occurs? a liquid becomes a solid a…

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Q: Calculate the boiling point of a solution made by adding 10.87 g of a nonelectrolyte (82.2 g/mol) to…

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Q: Part III. Nomenclature of Organic Compounds Direction: Name the following hydrocarbons. 1. 2. 3. CH₂…

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Q: Complete the second column of the table.

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Q: After the experiment, a student decides to dispose of their excess Mg safely by reacting it with…

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Q: 9. Calculate the wavelength an 5 = ?ælectron becoming of the light for the line in the Balmer series…

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Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: Given -> CaCO3(s) -----> CaO(s) + CO2(g)  Weight of sample = 2.237 gm  Weight of CO2 formed =…

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Q: Balance Fe Br + H₂SO4 → Fe₂(SO4)3 + H Br

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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.