A sprinter set a high school record in track and field, running 200.0 mm in  20.9 ss .  What is the average speed of the sprinter in kilometers per hour?

Q: In a sample of gallium there is 60.2% of gallium-69 (68.9 amu) atoms and 39.8% of gallium-71 (70.9…

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Q: 12. Convert 121 m into ft.

A: We can solve this question by using the concept of unit conversion for distance.

Q: Use your models to determine the absolute configuration of the chiral carbon atoms in the following…

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Q: TRY IT OUT 1. LiOH 2. Sr(OH)2

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Q: 2. Name each of the following functional Groups. H R-C-OH R-C-OH H OH HICH R-C-0-CH₂ H H R-C=CH₂…

A: Names of following functional groups will be as following :

Q: Calculate the initial concentration of the reactant

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Q: Br₂ Br₂ H₂O 1. mCPBA 2. TSOH H₂O HgSO4 H₂SO4 H₂O HBr (excess)

A: Alkene reacts with bromine water to give addition product in which one of double bonded carbon get…

Q: A bomb calorimeter can be used to measure the enthalpy of reaction for combustions, such as the…

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Q: The compound cyclopentanone has the molecular formula C,H,O. The 13C-NMR spectrum has three distinct…

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Q: 1. For the following compounds, circle those that not stable (do not have the correct number of…

A: Stable valency of an atom: Number of electrons that are required to complete an octet and it's…

Q: B. METALLIC BICARBONATE Combination of metal and carbonate [CO31²- MO M[CO3]² Mg²*[CO₂]² Mg2+O2-…

A: Metal bicarbonates when undergo decomposition always form CO2(g) and H2O(l) along with the metal…

Q: does Melted (potassium chlorate) & Melted (silver chloride) conducts electricity? and why?

A: The flow of charge is known as electrical conductivity and if a matter contains free electrons or…

Q: A 9.00 L tank at 12. °C is filled with 17.4 g of dinitrogen difluoride gas and 9.28 g of sulfur…

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Q: If abbreviated as 24Na2+ 1 atom of this substance would have____ protons,____neutrons, and____…

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Q: The dissolution of solute into a solvent can be dependent on a variety of factors. These include the…

A: A solute can be either solid, liquid, or gas.  The solubility of a solute in a solvent depends on…

Q: Consider the following reaction where Ke = 5.10 x 10-6 at 548 K. NH4Cl(s) NH3(g) + HCl(g) A reaction…

A: Given data :

Q: 2. Identify the different carbon and hydrogen environments in the following molecules. Use letters…

A: To represent different Hydrogen we can use A,B,C,D etc and for Carbon 1,2,3,4 etc is used. The…

Q: Why Metals are reflective or Shiny? Please cite some scientific theories, as much as possible,…

A: We need to explain why metals are reflective or shiny in terms of scientific theory

Q: cl CI N=

A: Symmetry elements present in the tetragonally compressed tetrahedral complex: S4 σd : Point group is…

Q: C. >) Order the compound A, B and C from lowest to highest Rr. The sample is spotted on a silica gel…

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Q: TRY IT OUT 1. 2. Li + HBr Sr + HF

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Q: Get the Moles of the condensed vapor recovered ( liquid)

A: Here given that, Your Data table : Pressure = 0.9973 atm , T = 370.45 K , V= 0.287 L  Lab partners…

Q: Give the IUPAC name for this alkane. Submit Answer Tries 0/45

A: In IUPAC nomenclature we have to select the longest carbon chain as parent chain.Then the numbering…

Q: Convert the following into a line-angle structure (include any non-bonding electrons)

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Q: Convert to a line-angle structure: CH3CH₂CH₂CH(CH3)2

A: tyry

Q: Solve the following equation and then express the answer in the correct number of significant…

A: We have been asked to calculate the following equation →                          (8.0 ·0.0482)100.0

Q: The spacing between two adjacent lines in the pure rotational spectrum of a diatomic molecule is…

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Q: X-rays have a wavelength small enough to image individual atoms, but are challenging to detect…

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Q: 7. Identify the frontier orbitals Mg atom in its ground state.

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Q: 8. The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21 x 10-8 cm.…

A: Given, Distance between the centres of two oxygen atom in an oxygen molecule (d)= 1.21 × 10-8 cm…

Q: 6. Tartaric acid is a naturally occurring organic acid found in many fruits. It has the following…

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Q: A moderate fever for an otherwise healthy adult is 100. °F. Convert this temperature to degrees…

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Q: b) A gas well is producing at a rate of 20,000 ft³/day from a gas reservoir at an average pressure…

A: Solution-  Data given-  rate = 20,000 ft³/day, pressure of 1,252 psia and a temperature of 145°C..…

Q: The pH of a solution is 9.41 ± 0.02. What is the concentration of H* in the solution and its…

A: We know that pH is defined by the formula: pH = -log [H^+]. We can invert this formula to find the…

Q: A chemistry student weighs out 0.0812 g of sulfurous acid (H₂SO3), a diprotic acid, into a 250. mL…

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Q: You are given a 27 % (w/v) solution of psicose.                                                Molar…

A: Given, Note: 1 μmoles = 10-6 moles moles of psicose = 450 μmoles = 450 × 10-6 moles % (w/v) of the…

Q: 86Rb+ What is the atomic number for this atom? [Select ] What is the atomic mass for this atom?…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: Please answer the questions. A 6.2-ft person weighs 175 lbs. Express this person's height in meters…

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Q: SAMPLE Calamansi Tap water Distilled Water Vinegar Sugar in water Baking soda Comstarch Soft drink…

A: Acid or Base  Depending on how one chooses to see the characteristics of acidity and basicity, the…

Q: What is the mechanism of the major product in the following reaction? C d) Sp CH₂ Q ? -) Sul and El…

A: -> In presence of strong base there occur E2 elimination reaction.

Q: The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute…

A: We know  P = CRT P= osmotic pressure C= molar concentration of solute R = ideal gas constant T =…

Q: a marble is placed on a scale and is found to has a mass of 22.2g.if the radius of the marble ball…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: A solution is made by mixing 75. g of acetic acid (HCH3CO₂) and 113. g of water. Calculate the mole…

A: Given, mass of acetic acid (HCH3CO2) = 75. g mass of water (H2O) = 113. g mole fraction of acetic…

Q: Convert the following into line-bond formula, indicating all lone pairs. н нн H-C-C H I H-C-C H H H…

A: Given compound: We have to convert this into the line-bond formula.

Q: ORT ANSWER. Write the word or phrase that best completes each statement or answers the question. t…

A: Protien are the long chain Amino Acids  which are essential part of life  .Lipids are triester of…

Q: Calculate the molality of chloride ions in an aqueous solution of magnesium chloride in which the…

A: To solve this problem we will use the formula of molality

Q: tration of a solution when 9.5 g of K₂CrO4 is dissolved in 1700 mL of water? SL SME ? M

A: Given,  Mass = 9.5 g Molar mass = 194 g/mol Moles = mass/ molar mass   = 9.5/194 = 0.0490 mol Volume…

Q: The density of a toy is 4.0g/mL and it has a mass of 2.0g. what is it’s volume? (I am only asking…

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Q: A stock solution will be prepared by mixing the following chemicals together: 3.0 mL of 0.00200 M…

A: Molarity of Fe(NO3)3 used, C = 0.200 M  Volume of 0.200 M Fe(NO3)3 used, V = 10.0 mL

Q: Determine the percent ammonia, NH3, in Co(NH³) 6C1, to four significant figures.

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.