1) Reactants Iron I + KSCN Type of Reaction observations Balanced Equation: Banum chloride + Sodium phosphate type of Reaction Observations: Balanced Equation: colbat chloride + NaOH type of Reaction: observations: Balanced Equation:

Q: A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution…

A: Mass of sample mixture  = 0.3146 g          NaCl + AgNO3 = AgCl + NaNO3  Let us consider mass of…

Q: Classify the basicity of potassium hydroxide, KOH, based on its reactivity in aqueous solution.…

A: In the given question we have to identify the basicity of KOH based on reactivity in aqueous…

Q: For the reaction 2Co (aq) + 2Cl(aq) +2Co²+ (aq) + Cl₂(g). E=0.483 V what is the cell potential at…

A: We will use the Nernst equation to calculate the Ecell E=Eo-RTnFlnQat 25ocE=E0-0.0592nlogQ the given…

Q: For the reaction N2(g)+3H2(g)⇌2NH3(g). what is the value of Kc at 500∘C if the equilibrium…

A: At equilibrium, the rate of the forward and the reverse reaction is the same and the concentration…

Q: The predominant forms of heavy metals (Zn, Pb, Fe, Cu, Ni, etc.) in aerobic sediments are the…

A: The answer is given below:

Q: Write the net ionic equation to show the formation of a solid (insoluble ionic compound) when the…

A:

Q: The global consumption of synthetic dyes is increasing due to increase in demand in various…

A: Among the large number of organic compounds , only few are considered as dyes . There are many…

Q: What would be overall reaction for a fuel cell that uses CH4 as the fuel?

A:

Q: QUESTION 14 What product would you obtain from reaction of hex-1-yne with BH3, followed by a. O a Ob…

A: Addition of BH3 followed by oxidation is called hydroboration oxidation reactions

Q: c) Provide an example of a chemical or biochemical process that can't be described as…

A: We need to provide an example of a chemical or biochemical process that can't be described as…

Q: σ᾿ px περ. Περι στρα σας σας ΠΕΡΙ ΠΕΡΙ 80

A: The formula of peroxide is O22-.

Q: Rank the following atoms in order of increasing size (i.e., smallest to largest): Li, Al, Be, Ba, O.…

A: We know that atomic size increases from right to left and from top to bottom in the Periodic Table.…

Q: which do you think is more stable, Be or Mg

A: We need to compare the stability of Be vs Mg. That is we need to predict is more stable, Be or Mg.

Q: 0.555M solution of NaF, what is the pH?

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: Which of the following mixtures will result in a chemical reaction?     A)  NH4NO3(aq) +…

A: Correct option -->    D)  Na3PO4(aq) + KOH(aq)

Q: How many moles of BCl3 are needed to produce 5.00 g of HCl(aq) in the following reaction? BCl3(g) +…

A:

Q: Are these the same molecule? same molecule isomers different molecules ~

A: Isomers have same chemical/molecular formula but different arrangement or attachment of…

Q: 1. A 50g sample of metal iron that was heated to 90 °C was dropped into a coffee cup calorimeter…

A: Given, mass of sample = 50 g volume of water = 200 mL

Q: 3. N₂ Draw the molecular orbital diagrams for the following molecules determine the bond order and…

A:

Q: At constant volume, the heat of combustion of a particular compound is -3549.0 kJ/mol. When 1.561 g…

A: we have to calculate the calorimeter constant.

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, she fills…

A: Given data for first reaction  delta H = 852. kJ  delta S = 2272. J/K T = 87.0 0C Given data for…

Q: Can you explain how the by product is formed?

A: Secondary alkylhalide react with strong nucleophile/base gives either substitution or elimination…

Q: U HCI, H₂O I

A:

Q: Are these the same molecule? H— O same molecule O isomers O different molecules Н H—C—N—H H H

A: The compounds with the same molecular formula but different bond connectivity are structural…

Q: Provide the synthesis, including the substrate, major intermediate(s), reagent(s), and product for…

A:

Q: 22. Using propene and bromo-ethane as the only sources of carbon and using any reaction conditions…

A: Answer:- This question is answered by using the simple concept of chemical reactions of organic…

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into…

A: ∆U = q + W  where ∆U = internal energy change  q = heat  W = Work

Q: What mass of carbon dioxide (in kg) is produced upon the complete combustion of 16.0 L of propane…

A: This question is based on stoichiometric calculations.

Q: A chemistry graduate student is given 125.mL of a 0.40M ammonia NH3 solution. Ammonia is a weak base…

A:

Q: What is the major product of the following reaction? a. a Br O a O b Br CH3 d CH3 Br₂, H₂O b. Br CH3…

A:

Q: Answer the following questions for the reaction NiCl₂ (aq) + 2NaOH(aq) → Ni(OH)2 (s) + 2NaCl(aq) How…

A:

Q: 5. List down the differences between graphite and diamond F

A: Graphite and Diamond both are allotrope of carbon. Both are crystalline in nature. Both has covelent…

Q: What happened to the starches in the cracker as the amylase enzyme in your saliva reacted with the…

A: Saliva is viscous and a colorless fluid secreted by saliva gland. It has pH of 6.2 to 7.4. It…

Q: Which one of the following compounds does not follow the octet rule? A) NF3 B) CO2 C) CF4 D) Br2 E)…

A: Given some molecules a) NF3 b) CO2 c) CF4 d) Br2 e) NO2 We have to choose that molecule which does…

Q: Which has a greater ionization energy, Be or Mg

A:

Q: Calculate the standard free-energy change(kJ) for the reaction at 25°C Use the standard reduction…

A: Given -> 2Au3+(aq) + 3Mg(s) <-------> 2Au(s) + 3Mg2+(aq)

Q: Calculate the standard free-energy change(kJ) for the reaction at 25°C Use the standard reduction…

A:

Q: When 2-chloropropane is heated in ethanol (EtOH), an elimination reaction occurs resulting in…

A: Elimination reaction of alkyl halide: Alkyl halide gives an elimination reaction by reacting with a…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A:

Q: What product forms when the following substance is treated with chloroform in the presence of KOH? O…

A:

Q: What is the mass-volume percentage of 18.0 g of sodium hydroxide in 48.0 mL of solution?

A:

Q: Write the equilibrium constant expression, K, for the following reaction. Please enter the compounds…

A:

Q: a metals metals in the order of increasing strength of metallic ly to your answer

A: We have been given three metals Na,K and Mg. We have been asked to arrange metals in order of…

Q: Are these the same molecule? same molecule isomers O different molecules

A: Compounds having same molecular formula are isomers whereas compounds having different molecular…

Q: Protein A has a binding site for ligand X with a dissociation equilibrium constant of 4.0 x 10-8 The…

A: We can easily calculate the association equilibrium from the dissociation equilibrium constant. We…

Q: FeS COS CdS Ksp 8.01x10-19 Ksp = 5.0×10-22 Ksp = 1.0x10-27 The sulfide concentration at which the…

A:

Q: Calculate the heat of reaction AH for the following reaction: 2 CH₂(g) + 30₂(g) 2 CO(g) + 4H₂O(g)…

A: Given -> 2CH4 (g) + 3O2(g) ---> 2CO(g) + 4H2O(g) B.E(C-H) = 413 KJ/mole  B.E (O=O) = 498…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Given -- >  (-1.8 x 105 kg.m/s )  We know that , 1kg = 1000 g  1 m = 100 cm

Q: For the reaction H2O2(aq) + 2H+ + 2I-(aq) -> 2H2O + I2(aq) Rate = [ H2O2] [I-] Two different…

A: The overall reaction is: H2O2(aq) + 2H+(aq) + 2I-(aq) → 2H2O(l) + I2(aq)  The rate law expression…

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.