Mass of the Mass of the Scenarios/Reactions Reactants Products 1. Rusting of iron 4Fe + 302 + 2H2O → 2FE203. H2O

Q: This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium…

A: The number of atoms can be determined by the number of moles of compound. The number of moles of…

Q: For which of the choices below will the following statement be true: When solution A is titrated…

A: The conductivity of a solution is due to the presence of aqueous ions. The conductivity of a…

Q: Calculate the energy of a mole of photons corresponding to a wavelength of 300 nm.

A:

Q: A beaker of hot water with a volume of 43.9 mL has an initial temperature of 94.3 °C. You place a…

A:

Q: 10. Which electromagnetic radiation is not part of the visible light spectrum? O ultraviolet light O…

A:

Q: A 20.0 mL sample of 0.150 M ethylamine is titrated with 0.0981 M HCI. What is the pH after the…

A: Given  mmoles of base = 0.15 M x 20 mL = 3 mmoles of acid = 0.0981 M x 5 mL = 0.4905…

Q: Which elements would be found in the alkaline earth metals family? [Select all that apply] O cesium…

A: Alkaline earth metals are six chemical elements in group 2 of the periodic table .These element are…

Q: A solution is made by dissolving 0.602 mol of nonelectrolyte solute in 793 g of benzene. Calculate…

A:

Q: 10. a. Determine the overall balanced equation for a reaction that has the following proposed…

A: Given in following question step 1st and step 2nd reaction calculate the rate law and respect…

Q: (References] What will the volume of a sample be if 400. mL of an ideal gas at 23 °C and 1.50 atm is…

A:

Q: Which salt is a strong electrolyte? O iron (III) phosphate ammonium sulfate O calcium carbonate…

A: To solve this problem we have to know about electrolyte .  Electrolyte are the substance which…

Q: engine.html?ClassID=1746475745# Orie. 3.08 x 10-3 mol FeCl3 was identified through titration from…

A:

Q: +. +. D(3147) Caught Dislocat 404-File or directory not f OWLV2 | Online teaching an…

A:

Q: A student in chemistry lab creates a buffer by making a 1.25 L solution that has 1.50 moles of…

A: Here 2.5 L of buffer solution contains 1.5 moles of NaBrO and 2.5 moles of HBrO ka= 2×10^-9. We have…

Q: 2. Find the answer and record the answer to correct significant figures If only the answer is given…

A:

Q: A buffer solution contains equal concentrations of X and HX (K, = 1.0 x 10 %3D P). Determine the pH…

A:

Q: Explain why the emission spectrum of an atom or molecule depends on its arrangement of electrons.

A: Electrons can be defined as the negatively charged particles that can revolve around nucleus in…

Q: A Weather ballon is filled with 1.1 L of helium at 21 degrees celcius and 0.50 atm. what volume does…

A:

Q: Write the half-cell equations, cell reaction equation and cell representation for the following…

A:

Q: 1. Give at least four medicinal uses of salicylic acid. 2. What are the roles sulfuric acid in the…

A: 1. Give at least four medicinal uses of salicylic acid. 2. What are the roles sulfuric acid in the…

Q: 16. Most nuclear reactions are controlled by substances that are good at catching neutrons. Which…

A: Control rods are used in nuclear decay process to control the neutrons Which can lead to chain…

Q: Name the following compounds: CH2 = CH-CH2-0-CH2-CH= CHe

A:

Q: -H

A:

Q: What is meant by the phrase, "the energy of an electron in a given orbital is quantized"? 2.

A: Electrons are negatively charged particles that revolve around nucleus in circular paths called…

Q: What is the molar volume of a gas at STP? O 11.2 L/mol O 0.0446 L/mol O 22.4 L/mol 22.4 mL/mol

A:

Q: Current Attempt in Progress X Incorrect. The CO, exhaled by astronauts must be removed from the…

A:

Q: Given set  A = {all elements that belong to Halogen family}, use roster form to rewrite this set…

A: Roster form description is a form in which a set of elements are listed in a bracket using commas.

Q: QUESTION 4 Using the bond enthalpy data from the table below, estimate the enthalpy of reaction…

A:

Q: The theoretical yield of a product in a reaction is determined by the limiting reactant. O True…

A: 1.Theoritical yeild is the amount of product fromed from given balance equation . 2.While actual…

Q: 24Na) is a radioisotope used to study circulatory dysfunction. A measurement found 5 micrograms of…

A: Radioactive decay proceed with first order kinetics. So we would use rate equation of first order to…

Q: 1. Draw the best Lewis dot structure for SeF4 in the correct molecular geometry [Include formal…

A: Draw the best Lewis dot structure for SeF4 in the correct molecular geometry [Include formal…

Q: Calculate the absorbance of an organic dye [C =7×10-4 mol L−1] ,knowing that the molar absorptivity…

A: Given: The molar concentration of the solution = 7×10-4 mol L−1 The  molar absorptivity, ∈= 650 mol…

Q: Use the following reaction and choices for H,PO, + HCI→ H,PO, + Cl¯ а. Н,РО, b. HCl с. Н.РОд d. Cl-

A: According to Bronsted-Lowry theory : ** The Bronsted-Lowry acid is a substance which donates a…

Q: 4. Calculate the AH for the following reaction: NO 0 > NO2 Given the following information: 2 03 > 3…

A: NO +O ---> NO2

Q: Compare and contrast organic and inorganic compounds.

A: Similarities between organic and inorganic compounds :- As we can see, some molecules with carbon…

Q: Literature IR spectrum of salicylic acid - copy image of the IR (KBr disc) from SDBS and attach here…

A:

Q: An activator molecule like DCC is important to create a good leaving group from a -COOH functional…

A: DCC is named as dicyclohexylcarbodiimide. It is used as a coupling agent in most of the organic…

Q: Give a mechanism for the reaction of AC with AD to yield AE. Explain the selectivity in terms of…

A: 2 and 5 position of pyrrole is prone towards electrophilic attack.

Q: 1. Describe the difference between the Rutherford model of the atom and the Bohr- Rutherford model…

A: There are different type of models for explaining the atomic model of an atom. Some of them are…

Q: A galvanic cell is constructed by immersing a tin electrode in a 0.10 M Sn(NO,), solution and…

A:

Q: N-number: A protein has a molecular mass of 400 kDa when measured by size-exclusion dodecyl sulfate…

A: Given information,MW given by size exclusion chromatography = 400 kDaIt is the native protein size.…

Q: Mass of AgNO3 used in reaction (this is the mass of just the AgNO3, without the vial) Mass of copper…

A: Values can be calculated using given data .

Q: 3. Answer all parts (a) Consider the two reactions in the scheme below: Br NaN3 DMF Product and…

A:

Q: Draw the structure for: cis-1,1-dichloro-5-isopropyl-6-methyl-2-phenyl-octa-1,6-diene

A: Draw the structure of the given name suitable for this--

Q: ngven 2. A solution is 5.0 x 10s M in each of these ions: Ag* SO,? , Cl and CO32 Which precipitate…

A:

Q: The boiling point of an aqueous solution is 101.87 °C. What is the freezing point? Consult the table…

A: Given data : Boiling point of solution = 101.87°C Freezing point constant (Kf) = 1.86 °C.kg/mol…

Q: 17. An organic chemist reacted 10.0 g CH4 with excess Cl2 and obtained 10.0 g of CH3CI according to…

A:

Q: What mass of CASO4 will precipitate after mixing 50.0 mL of 0.020 M Ca(NO3)2 with 50.0 mL of 0.0080…

A: Ksp of CaSO4 = 7.1 x 10-5 Molarity of Ca(NO3)2 = 0.020 M Volume of Ca(NO3)2 = 50.0 mL Molarity of…

Q: 4. Which nuclide is written in isotope note 18 80 O so 59 27CO O iron-56 89 39Y

A:

Q: What is the equilibrium concentration of hydroxyl ions present in a solution of HClO4 whose…

A:

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.