Physical changes in matter occur. Matter keepsit changes in matter are_ characteriistics, but chemical ?

Q: Que't consider the reaction. 4N Hz (g) +50₂19) & Norg) + 6H₂olg using the standard thermodynamil…

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Q: Consider the following reation: CaCO3(s) + 2H3O+ (aq) ⇒Ca²+ (aq) + CO₂(g) +2 H₂O(1) Adding HCI will…

A: Adding HCl will increase the concentration of :

Q: STOICHIOMETRY IN BALANCED EQUATION Answer the following below. Show your solution for each…

A: Number of moles is calculated by dividing the given mass with molecular mass. Here we have to…

Q: A solution make by mixing 20.0g of a non-volatile compound with 125ml of water at  25 degree c has a…

A: Given: The mass of the non-volatile compound dissolved = 20.0 g The volume of water = 125 mL The…

Q: 9. HO OH cat. H₂SO4 ∞

A: Carbonyl compounds reacts with diols in the presence of a acidic catalyst to form a cyclic product…

Q: . How can the water displacement method be used to measure solid? the density of tan…

A: To measure the density of a solid , we need its mass and volume .

Q: The normal boiling point of water is 100.0 °C and its molar enthalpy of vaporisation is 40.67…

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Q: Classify the following quantities if extensive or intensive property: 4 a.) Temperature b.) Mass c.)…

A: Given quantities: a) Temperature b) Mass c) Weight d) Volume We have to classify these quantities as…

Q: Choose the correct IUPAC name for the following compound: Oa) 2,5-hexadiene Ob) 2,5-heptene Oc)…

A: We have to name the given two compounds using IUPAC rules

Q: A 0.20-g sample of a purified protein is dissolved in water to give 2.0 mL of solution. The osmotic…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution. We…

Q: 4. Circle and name all non-alkane functional group present in the molecules below (a) (b) HO O NH₂…

A: The organic compound is formed by two main elements, carbon, and hydrogen. The specific group of…

Q: The archeologist collected a sample for testing and learned that the carbon-14 activity was found to…

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Q: 3. Gases-ex: helium gas is colorless, no smell, fills an entire balloon, no taste, makes my voice…

A: A question based on general chemistry that is to be accomplished.

Q: Draw the structural formula of the following compounds. 3-methyl -1- pentyne 2,3,4-chloro octane

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Q: For a certain hydrocarbon gas, 20.0 mg exerts a pressure of 24.7 torr in a 500-cm3 vessel at 25…

A: Ideal gas equation is  PV =nRT  P = pressure of hydrocarbon gas = 24.7 torr = 0.0325 atm  V = volume…

Q: 1. What is the density of a solid if a sample occupying a volume of 16.53 mL wei 85.4 g? 2. Why does…

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Q: Consider the following system at equilibrium where AHⓇ = 268 kJ and Kc = 5.10 x 10-6, at 548 K.…

A: To determine the answer we would use Le-Chatelier's principle.    Note : As there are multiple…

Q: A student decomposes KClO3 and collects 36.5 cm3 of O2 over water at 23 Celcius. The laboratory…

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Q: 5. Lance obtains a silvery metallic unknown. He weighs the metal and finds that he has 60.55g. When…

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Q: Write the rate law for the following elementary reaction: CFC13(9) CFC1₂(g) + Cl(g) Use k, to stand…

A: The relation between the concentration of the reactants and the rate of reaction is expressed by the…

Q: b Complete the following table for an isotopically-labelled atom or ion: Group of Element Group 2A…

A: Given :-  ---------------------------------------

Q: For the reaction: H2 +Cl2 ----->  2HCl, 3.7 moles of H2 are mixed with excess HCl. How many moles of…

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Q: From the given reaction: 2 I2 + KIO3 + 6HCl = 5ICl  +  KCl  +  3H2O     How many grams of iodine are…

A: Given - Mass of ICl = 28.6 grams

Q: Resonance, hybridization, Lewis structures: Draw the most important resonance contributor of the…

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Q: Sodium chloride (NaCl) exhibits predominantly ionic bonding. The Na+ and Cl- ions have electron…

A: The general electronic configuration of inert gas is nS2 nP6. That is their valence shell is…

Q: + 2,4-Dinitrophenylhydrazine ->?

A: Ammonia or ammonia derivative reacts with carbonyl compounds to give addition products.

Q: Name the structures of aldehydes and ketones below:

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: 8. For the following reactions, determine the value of “x”. a. 4C + S8 = 4CS2 3.2 mol S8 yields x…

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Q: 2. Calculate the density of an irregularly shaped solid if its mass is 50.2 g and its volume is 5.0…

A: Given,       Mass of solid = 50.2 g       Volume of solid = 5.0 ml       Density of solid = ?

Q: Compound [Ni(CO)4] [Fe(CN)5] PROBLEM WORKSHEET B [Cr(OH)6] Coordination Charge on the number metal…

A: We are authorised to solve only first three subparts of a question. Please post rest of the subparts…

Q: 6. Given the following equilibrium reaction: COCI2 (g) ← CO (g) + Cl2 (g) Kp = 6.8x10-9 If the…

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Q: When 116. mg of a certain molecular compound X are dissolved in 60.0 g of cyclohexane C6H12, the…

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Q: Tell what sublevels there are in each of the following energy levels, and explain each answer in…

A: Q.4) Here energy levels are given and we have to find sublevel in these energy levels. •Please pay…

Q: What is the angle between two of the carbon-hydrogen bonds in the methane (CH4) molecule? 0° X S

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Q: 8. Predict the sign of the change in entropy for the condensation of steam to liquid water. 9.…

A: Entropy means randomness. Higher the randomness of the system, higher will be its entropy.

Q: Calculate the molar concentration of the solution formed when 69.68 g of MgSO4 * 6 H2O is dissolved…

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Q: 1. Describe the preparation of a 4500ml solution of Nator 1500. Oppm starting from a solution of…

A: Concentration of the desired NaBr solution = 1500.0 ppm 1 ppm = 1 mg/L =>Concentration of the…

Q: 1. How can the water displacement method be used to measure the density of tan irregularly-shaped…

A: Water displacement method is a method to determine the volume of any solid substance . In this…

Q: A sample of 65 mg of a perfect gas at 0.800 bar has its volume doubled and its absolute temperature…

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Q: 10. Match up the compounds on the left below with the solvent which would best dissolve it (on the…

A: Given compounds - 1) Indane 2) Hexane-1,2,3,4,5,6-hexol 3) 1,3-dichlorobenzene 4) NaCl Given…

Q: The pka values of a weak acid is directly proportional to basicity. O True O False

A: The given statement is True. It can be explained as below:

Q: H. Calculate AGRxn using the AG values in your references. I. Is the reaction spontaneous at this…

A: G , H ) We can calculate the following values using the formula.  I ) The reaction is said to be…

Q: Area Of Field Health And Medicine Food And Agriculture Consumer Product Some Chemical Components…

A: Consumer goods Consumer goods, often known as final goods, are items that are purchased by people or…

Q: You want to prepare a 0.02 N hydrochloric acid standard to use as the titrant in a titration.…

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Q: The rate constant k for a certain reaction is measured at two different temperatures: temperature k…

A: In the given problem we have given two different temperatures and two different rate constants. So…

Q: Think about what you already know about different phases of matter. Given this figure showing the…

A: Matter exists in three states such as solid, liquid, and gas.  The conversion of one state to…

Q: Draw a structure of a: a. Fatty Acid 18:3 (△9,12,15) b. Reducing Sugar

A: #(a): Given the symbol of the fatty acid is 18:3 (∆9,12,15) The numbers 9, 12, and 15 indicate that…

Q: 2. In an FCC structure, the atoms are found on the corners of the cubic unit cell in the centers of…

A: In FCC : Number of total atoms in a unit cell =4  Number of atoms at corners = 8  ( contribute each…

Q: "roblem 7.42 (a11) Part A There are two resonance contributors for this molecule. Draw the major…

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Q: Q1. A 100 g soil containing 20% smectitie mineral matter was mixed with 150 mL solution containing…

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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.