Cu(s)+PdCl2(aq) CuCl,(aq)+Pd(s)

Q: A NaF(aq) solution (solution 2) is 9.20% by mass in NaF. Solution 2 has a density of 1.05 g/mL. 415…

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Q: Calculating ion molarity using solute mass A chemist prepares a solution of magnesium bromide…

A: For MgBr2 solution , the molarity of Mg2+ is same with MgBr2 and  Br- will be double than the…

Q: Now it's your turn to make the beaker drawings for one of the chemical reactions you observed…

A: If a salt is soluble in water it will form ions otherwise it will be remains as solid precipiate.

Q: A sample from a mine's tailings pond contains Pb2, Ag+, Mg2+, and Na+ cations.What ionic compounds…

A: To achieve the separation of Pb2+, Ag+, Mg2+, and Na+ cations within a sample…

Q: 4. Enter the chemical equation 2H+(aq)+S2−(aq)→H2S(g)2H+(aq)+S2−(aq)→H2S(g)?

A: Given:-we have to  enter the chemical equation.2H+aq+S2-aq →           H2Sg

Q: You have been provided with a 35.7 mL sample of lithium hydroxide (LiOH) of unknown concentration.…

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Q: A chemist prepares a solution of vanadium III chloride VCl3 by measuring out 0.90g of…

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Q: A 27.00 mL sample of an unknown HC1O4 solution requires titration with 20.32 mL of 0.1900 M NaOH to…

A: BALANCED REACTION HClO4 (aq) + NaOH(aq) ---> H2 O (l) + NaClO4 (aq)  Volume of NaOH= 20.32 mL=…

Q: What is the correct net ionic equation for the reaction that takes place when solutions of sodium…

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Q: The spectator ion in the equation A1(NO₂), (aq) + Zn(s) → Al(s)+Zn(NO₂)₂ (aq) is aluminum ions zinc…

A: We have to find the spectator ion in the given reaction.

Q: You perform your first titration using your NaOH with a KHP solution. Your KHP solution is made with…

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Q: chemistry student weighs out 0.152g of phosphoric acid H3PO4 , a triprotic acid, into a 250.mL…

A: Given that, 0.152 g of H3PO4 was dilute to 250. mL. Then, this was titrated with 0.2000 M of NaOH…

Q: How to write a chemical equation for transition metal ions found in a solution?  The ions found were…

A: Given : solution of Co2+ (aq) and Cu2+ (aq). 1) Adding NaOH : Since addition of NaOH will bring OH-…

Q: Given the following, what is the complete ionic equation? Na2SO4(aq) + Ba(OH)2(aq) → BaSO4(s) + 2…

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Q: Identify which species was oxidized and which was reduced. 2Na(s) + CuSO4 (aq)→ Cu(s) + Na2SO4 (aq)

A: Oxidation Oxidation is defined as loss of electrons. Reduction  Reduction is defined as gain of…

Q: A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment. For…

A: Molarity of the Cu+2 stock solution = 2.71 M Dilution formula isM₁V₁ = M₂V₂where M₁ and V₁ represent…

Q: None

A: A redox reaction, also known as an oxidation-reduction reaction, is a chemical reaction in which one…

Q: Identify the oxidizing agent and the reducing agent for Mg(s) +Fe²+ (aq) → Mg²+ (aq)+Fe(s). Express…

A: Redox reaction: A reaction in which both oxidation and reduction takes place and oxidation states of…

Q: A chemistry student weighs out 0.157g of lactic acid HC3H5O3 into a 250.mL volumetric flask and…

A: To find the volume of NaOH, first molarity of lactic acid needs to be calculated.  Molarity = number…

Q: 2 Al(s)+3CuCl,(aq)→3Cu(s)+2 AlCl, (aq) A piece of aluminum metal is placed in an aqueous solution of…

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Q: total ionic equation: Cu²+ (aq) + SO2 (aq) + Mg(s) → Mg²+(s) + SO²¯ (aq) + Cu²+ (aq)

A: Given , Incorrect equation : Cu2+(aq) +SO42-(aq) +Mg(s) →Mg2+(s) +SO42-(aq) +Cu2+(aq)

Q: Which is the correct net ionic equation for the following reaction MgSO4 (aq) + Cu(s) → Mg(s) +CuSO4…

A: A chemical equation that shows only those ion element compounds that directly take participate in…

Q: Complete the balanced molecular chemical equation Fe(NO3)2(aq)+KOH(aq)

A: A chemical equation is said to be balanced if atoms of different elements are equal in number on…

Q: M2COS(aq) + CaCl2(aq) → CaCOs(s) + 2 MC1(aq)

A: This question can be solved as:

Q: chemistry student weighs out 0.160 g of sulfurous acid (H2SO3), a diprotic acid, into a 250. mL…

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Q: The oxidizing agent in the reaction below is 3CuCl2(aq)+2Al(s) →3Cu(s)+2AlCl3(aq)   Cu2+   Al   Cu…

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Q: Write the net ionic equation for the reaction between Na₂SO4 (aq) and Pb(NO3)₂ (aq). Be sure to…

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Q: A chemist needs to create a series of standard Cu²+(aq) solutions for an absorbance experiment. For…

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Q: 2 SmCl3(aq) + 6 LiCl(aq) + 6 e- → 2 Sm(s) + 6 Li+(aq) + 6 Cl-(aq) how di you get this reaction , i…

A: A redox reaction is a chemical reaction in which electron transfer takes place between the…

Q: Chlorine is toxic to fish. Even at low concentrations, it can damage their gills. An aqueous…

A: The concentration of chlorine in water is defined as 10 ppm. This implies that 10 g of chlorine is…

Q: A chemist needs to create a series of standard Cu²+ (aq) solutions for an absorbance experiment. For…

A: Molarity of the Cu+2 stock solution= 2.07 M  Dilution formula is M₁V₁ = M₂V₂ where M₁ and V₁…

Q: In the following reaction which occurs from left to right: 3 Cu2*(aq) + 2 Fe(s) → 2 Fe3*(aq) + 3…

A: Introduction: Oxidation: Oxidation is the loss of electrons or hydrogen atoms or gain of oxygen…

Q: A chemistry student weighs out 0.146 g of lactic acid (HC,H,O,) into a 250. mL volumetric flask and…

A: Mass of lactic acid = 0.146 gMolar mass of lactic acid = 90 g/molMoles of lactic acid = Mass of…

Q: potassium iodide + lead (II) nitrate

A: The reactants given are  1) Potassium iodide i.e KI 2) Lead (II) nitrate i.e Pb(NO3)2

Q: write the balanced net ionic equation Pb(NO3)2(aq)+BaCl2(aq)---PbCl2(s)+Ba(NO3)2(aq)

A: # Meaning of net ionic equation : An ionic equation in which spectator ions are removed and shows…

Q: The reaction, Al(s) + HCIO (aq) O True False evious Al(CIO4)3(aq) + Hy(0), involves changes in…

A: In redox reaction oxidation and reduction takes place simultaneously . In oxidation there is loss of…

Q: diluted

A: mmoles of HCl = ( Molarity ) • ( volume )  mmoles of HCl = 3.00molL-1 • 25.00mL  mmoles of HCl =…

Q: In the following reaction which occurs from left to right: 2 Fe3+(aq) + Zn(s) → 2 Fe2*(aq) +…

A: The substance which undergoes oxidation is reducing agent and substance which undergoes reduction is…

Q: In the reaction Al(s) + Ca(NO₂)₂ (aq) → Al(NO₂), (aq) + Ca(s) which element gains electrons in the…

A: Reaction:Al(s) + Ca(NO3)2 (aq) → Al(NO3)3 (aq) + Ca(s)

Q: Write the net ionic equation (Including phases) for: Pb(ClO4)2(aq)+K2CO3(aq)⟶PbCO3(s)+

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Q: Which of the following entities can act as both an oxidizing agent and as a reducing agent? Select…

A: Oxidizing agent- Species that oxidize other substance and itself gets reduced. Reducing agent-…

Q: What is the initial mass of copper (in g) in the Cu(NO3)2 solution. Cu(NO3)2(aq)+ 2NaOH(aq)->…

A: Ans. 63.5 g of Cu is present in Cu(NO3)2 solution

Q: Write the Keq for: 2 K3PO4(aq) + 3 Ca(NO3)2(aq) 6 KNO3(aq) + Ca3(PO4)2(s)

A: Keq is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.