A hot air balloon's gondola is suspended below a cloth envelope containing 4.213 x 10 liters of hot air. How many milliliters of hot air is this?

Q: The compound shown here is classified as what type of organic compound? HỌC-CH, COCH,CH A) ether B)…

A: Different functional groups in organic chemistry are, Note: Here, R or R' is a alkyl group. Aldehyde…

Q: Platinum has a density of 21.45 g/cm³ 25 °C. On the other hand, water at this temperature has a…

A: Given - Density of platinum at 25°C = 21.45 g/cm3            Density of water at 25°C = 0.99997 g/ml…

Q: 1. Use the polygon rule to draw the MO energy diagram. 2. Is it aromatic, antiaromatic, or…

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Q: molecule has a total of freedom. 9 2 3 6 7 degrees

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Q: 1) Mg, EtO a grignard reagent? If so, how does it become a grignard reagent?

A: Alkyl Magensium halide RMgX are referred to as Grignard reagent. These can be prepared by the…

Q: In each box, write the number of H's that each labeled carbon has. For example, if the carbon next…

A: Since, Valency of carbon is 4. Then,

Q: Suggest how the components of each mixture can be separated. a. Salt and Sulfur b. Copper and Zinc

A: Solution The mixture of salt and sulphur is a mixture of heterogeneous mixture.They can be seperated…

Q: Ritonavir

A: Functional group: It is defined as the  groups of atoms in a compound, such as the hydroxyl group in…

Q: You are required to prepare working standard solutions of 1.00 × 10−5, 2.00 × 10−5, 5.00 × 10−5, and…

A: Given  M₁ = 0.100M stock solution V₁ = volume of Stock solution M₂ = Working standard V₂ = Volume of…

Q: At a given temperature, pentane with a vapor pressure of 624 torr is mixed with hexane with a vapor…

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Q: For the expression pH=pK₂ + log What is [A]? [B] [A] the pH = 4.130, the pka = 4.200, and [B] =…

A: Answer: Both the questions are based on the skillset of solving the mathematical equation in…

Q: The sodium bicarbonate in an antacid tablet is titrated with 21.5 mL of 0.300 M hydrochloric acid.…

A: A) Given, Molarity of HCl solution = 0.300 M = 0.300 mol/L Volume of HCl solution = 21.5 mL = 0.0215…

Q: Which of the following species is not a resonance structure of the top species?

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Q: CaCl melting point: 1.422 Fahrenheit C12H22011: (contains 8 H-bonds "hydrogen bonds"): melting point…

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Q: 6. Consider this reaction at equilibrium, 2 BrNO(g) = 2 NO(g) + Br₂(g)

A: According to Le Chateliar principle if a system is in equilibrium is subjected to change of…

Q: Fe(NO3)3.9H₂0 + Bi(NO3)3.5H₂O + HNO3 (dil) iron nitrate nonahydrate A + C4H606 Tartaric acid Find A…

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Q: Consider the galvanic cell based on the following half-reactions. Ag+ + e → Ag 8° = +0.80 V Cd2+ + 2…

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Q: A 24.4 mL sample of 0.211 M ethylamine, C₂H5NH₂, is titrated with 0.343 M hydroiodic acid. At the…

A: Ethylamine, C2H5NH2 is a weak base with pKa = 10.8  Ethylamine, C2H5NH2 when reacts with the strong…

Q: How many lone pairs are on the molecule shown below?

A:

Q: its possibly incorrect

A: Given that, The vapour pressure of pure pentane is p01 = 624 torr. The vapour pressure of pure…

Q: A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2 gives 23.3 g…

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Q: A typical human body contains between 9 and 12 pints of blood. A woman's body contains 11.05 pints…

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Q: Express each of these concentrations in parts per million (ppm). 7.4 milligrams per kilogram of…

A: Here we are required to find the concentration of solution.

Q: this is wrong

A: Given,  Mass of ethyl alcohol = 50.0 g  Mass of water = 75.0 g  What is the mole fraction of ethyl…

Q: Here are the four sketches os pure substances.each sketch is drawn as if a sample of rhe substance…

A: Given diagram is :  There are the four sketches of pure substances .each sketch is drawn as if a…

Q: S U- B- S

A: SUBSTANCE A matter with certain qualities and makeup is referred to as a substance. Every pure…

Q: 0.4% Iodine Potassium Iodide = I2KI = a solution of elemental iodine (I2) and potassium iodide…

A: Molecular weight of a compound is calculated by adding atomic weights of all the atoms present in…

Q: THE CHEMICAL FORMULA OF THE FOLLOWING COMPOUND •Sodium hydroxide •Potassium permanganate

A: A chemical formula indicates the elements and their proportions in a compound .

Q: convert 650 nm to cm

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Q: Consider the reaction described by the equation The rate law is C₂H, Br, (aq) +31(aq) C₂H₂(g) + 2 Br…

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Q: How many moles of magnesium oxide are produced by the reaction of 3.82 g of magnesium nitride with…

A: Magnesium oxide is MgO,  Magnesium nitride is Mg3N2, and water is H2O.

Q: Consider the following: CH3CH₂CH=CHCH₂CH3 1 CH3CH=CHCH₂CH₂CH3 ||| II and III OI and III OII and IV…

A: We have to find the structures that represent the same compound.

Q: Explain and draw Points Defects of cr

A: Point Defect Point defects in crystal structure are isolated interruptions to otherwise flawless…

Q: 1. A weak acid HA is 0.20 % ionized in a 0.04 M solution. What is the acid-ionization constant of…

A: The acid ionization constant(Ka) represents the fraction of the acid that has been ionized in the…

Q: Which of the following is relatively most acidic?    acetic acid            hydronium ion…

A: In this question, we need to find out most acidic compound.  Acidic compound : Those compound are…

Q: How many significant figures would this calculation have if it were completed: (9.04-8.23 +21.954…

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Q: When 30 g KCl and 30 g of CaCl2 added to 50 dL of DI water, find the molar concentration of Cl-.and…

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Q: precise. You work in a chemistry lab. The chemical test you do is based on a color change when two…

A: The color of the reference standard is yellow The color of the first 5 samples is also yellow. The…

Q: CH3-CH2 | I 4.CH3-CH-CH-CH2-CH-CH2-CH2-CH2-CH2-CH3 CH3-CH2 | CH3

A: IUPAC nomenclature rules for alkanes: • Identify the longest continuous carbon chain. • Identify the…

Q: B: Explain the classification of metals according to those factors. a: Compositions, b: Content of…

A: Metal : Metal is any of a group of substances with strong thermal and electrical conductivity,…

Q: Circle every active position and indicate at each whether it is electrophilic or nucleophilic.

A: An electrophile is an atom or group of atoms that is deficient of electrons and hence attracted…

Q: CH₂Cl AICI 3 EtCl emistry Step AICI, DO En + Chemistry Steps A ry Steps B Chemistry S H NBS…

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Q: A flask is charged with 0.110 mol of A and allowed to react to form B according to the following…

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Q: 10. Use the data: AGº (CO) = -137.2 kJ, AGº (C) = 0 kJ, AGº (O₂) = 0 kJ, to find K at 298 K for the…

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Q: The phase change from gas state to a liquid is called a) boiling b) sublimation Oc) vaporization d)…

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Q: pressure 1.40 g of a polyethylene sample was dissolved in enough benzene to make 100. mL of…

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Q: We experimented on various elements: Mossy Zinc, Aluminum Turnings, Copper Turnings, Activated…

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Q: 1. The antibacterial activity of flavonoids was tested against the bacterial strain, Escherichia…

A: A question based on molecules that is to be accomplished.

Q: . What is the minimum radius for the host metal for a H atom (radius 37 pm) to fit in a tetrahedral…

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Q: Checkpoint #5: Given the following equilibrium reaction: 2 S03 (g) 2 SO₂ (g) + O₂ (g) Kc is 0.0290…

A: Answer: Given data: KC=0.0290[SO3]=0.0193M[SO2]=0.0372M

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.