Why is cellular respiration an example of a redox reaction? There is a long series of electron transfers in which compounds are oxidized and reduced. ATP is produced. Glucose is broken down to produce energy. O It is a single transfer of electrons in which compounds are oxidized and reduced.

Q: 27. What reaction converts the C=O bond to the C=C bond? a. Witten Reaction b. Wittig Reaction c.…

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Q: Directions: Analyze each of the following statements whether it describes the property of water.…

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Q: The following experimental data were obtained for the reaction A + 2B →3C: Initial speed of…

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Q: a 9.95x10^-1 g sample of water is introduced into a 0.645 L flask containing some C2H4 gas. The…

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Q: 1. Name the following compounds. a) b) ) mib di isopropyl - 7ethyl decane. ال 9 - بابا e 10 گار

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Q: An egg takes 10 minutes to boil under the following conditions: 100°C and 1 atm at the surface 1)…

A: t 1/2 =1/k  K=1/t  =1/10 =0.1 proved

Q: 38. For the given reaction, determine which substitution mechanism occurs, then determine which…

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Q: When cis-1,2-cyclopentanediol reacts with acetone in dry HCl, compound M is formed. What do you…

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Q: The dissolution process is represented by the following equation: Ca²+ (aq) + 2Cl¯(aq) CaCl₂(s) The…

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Q: What is the electron pair geometry of CH2Cl2 ? (C is the central atom) linear tetrahedral bent…

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Q: A sample consisting of 1.00 mol Ar is expanded isothermally at 20 °C from 10.0 dm3' to 30.0 dm3'.…

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Q: Imagine you and your friends are making hot dogs. A complete hot dog consists of a frankfurter and a…

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Q: 28. The formula for methyl ethanoate is which of the following? a. b. H3C- H3C-CH-CH3 OH -CH₂-CH3 C.…

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Q: Draw the electron dot diagram for carbon monoxide and carbon dioxide. Predict the products…

A: Given Lewis structure of CO and CO2

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Q: When molybdate (MoO3) and Zinc (Zn) are heated together they react in this equation: 3Zn +2M003 →…

A: Balanced chemical reaction between molybdate and zinc as follow 3Zn + 2MoO3-----------> Mo2O3 + 3…

Q: A calibrated flask has a mass of 0.02 kg when empty, 0.095 kg when filled with water, and 0.058 kg…

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Q: The correct order of increasing electronegativity of elements. Select one or more: S<CI<Se S<Se<CI…

A: we have to arrange S, Cl and Se in increasing order of electronegativity

Q: b) Draw the following crystallographic directions in a cubic lattice: [11], [012], [103]. ►

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Q: a) Draw the Lewis structure for NCI3 b) State the VSEPR notation. c) Predict the shape of the…

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Q: The following atoms all undergo Beta particle (°-1 B) emission. write the nuclear equation. 14 C→ 6…

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Q: Decide whether each sketch shows a pure sample of an element or a pure sample of a compound.…

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Q: Which of the following is a possible way to describe the components in the reaction below? 2Ag(s) +…

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Q: a) Draw the Lewis structure for BrF, b) State the VSEPR notation. c) Predict the shape of the…

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Q: Mac Reaction B: NH₂ H H H H H :Br: Draw the products of Reaction B. Incorrect

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Q: H3C-CH The compound above is classified as a(n) a. alcohol b. carboxylic acid c. aldehyde d. ketone…

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Q: 20. Bronsted-Lowry defined a base as a. a substance that releases H+ b. a substance that releases OH…

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Q: A 70 mL sample of brine, a wastewater byproduct of an industrial process containing high…

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Q: The solubility of nitrogen gas in water at 25 °C and pressure 1 bar is 6.3 x 10-4 mol/L. Calculate…

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Q: 3. Read section 3.8. Draw a substituent on C2 that is 2 A 1 a. b. anti to A gauche to A

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Q: Q2. Using Mass spectrum and NMR data deduce the structure of the following compounds; (a) C,H,BrO₂…

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Q: 30. The sequence of reactions shown here is best described as which of the following? H₂C=CH₂2₂…

A: CH3 CH2-OH →1CH2=CH2 →2CH3-CH3 →3 CH3CH2- Br

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Q: Read section 3.10. Draw a bond-line structure of the most stable conformation for methylcyclohexane,…

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Q: What is the pH of a 0.250 M sulfurous acid solution? H₂SO3 + H₂O H3O+ + HSO3 K₁₁ A. 1.21 B. 0.054 C.…

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Q: Which of the following is/are true for a nucleus that undergoes positron emission? 1. The…

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Q: Propose the reaction mechanism for the following transformation:

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Q: Draw the full structural diagram for the following: a. Propyl ethanoate b.…

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Q: LOCH 3 NO₂ IV LOCH3 LOCH 3 NO₂ NO₂ HNO3/ H₂SO4 LOCH3 NO₂ || O₂N V ||| LOCH3 LOCH3 NO₂ NO₂

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Q: 2) Provide the mechanism type for the reactions below from the following list: SN2 (concerted…

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Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.