A quantitative observation is called a measurement. Is this statement true or false? True False

Q: 12 Find the radius of a nucleus of C and 6 (a) (b) 12 C 6 238 92 U fm fm 238 92 U.

A: Given : symbol of atoms

Q: 10 g 1 kg Perform the following calculation and round to the correct number of significant digits: A…

A:

Q: How do you separate a mixture of naphthalene, biphenyl-4-carboxylic acid, and 4-chloroaniline? Thank…

A: Carboxylic acid react with bicarbonate to produce water soluble sodium salt NH2 group reacts with…

Q: Listen Which of the following is the product of below reaction (consider a balanced molecular…

A: we have to determine the product of the given reaction for a balanced molecular equation

Q: The basic difference between a monomer of polyethylene and a monomer of polyvinyl

A: A long chain of carbon atoms forms PVC with a chlorine atom attached to every other carbon atom. In…

Q: Aromatic compound naphthalene melts sharply at 79–81 °C. The melting range will be significantly…

A: Naphthalene is an aromatic compound composed of two fused benzene rings. The structure of…

Q: Bronze is an alloy made of copper (Cu) and tin (Sn). Calculate the mass of a bronze cylinder of…

A:

Q: in acid-base titration 50.0 mL of a solution of sodium hydroxide is neutralized by exactly 12.50 mL…

A: We know that for acid base titration of H2SO4 and NaOH H2SO4 is dibasic. So, 2M1V1 = M2V2 M1 =…

Q: Which of the following statements is false? 1) Metabolic pathways are a series of chemical reactions…

A: 1) Metabolic pathways are a series of reaction found in biochemical reactions . It can be linear…

Q: 1. What complex ion has the smallest octahedral field-splitting energy? Choices: o [Rh(OH₂)6]³+ o…

A:

Q: Given the following atomic symbol: 41 19 X Which element would be X?

A: To find out the element X, we need to check the atomic number of the element X in the periodic table…

Q: Redox Reaction: Fe2+ (aq) + MnO4- (aq)  -> Fe3+ (aq) + Mn2+ (aq) Balance the given redox reaction…

A: Given : redox reaction

Q: 1) m) K + H₂ Lindlar's catalyst hot KMnO4 -> 0₂ (CH₂)₂S

A: Given : structure of reactant

Q: The following thermochemical equation is for the reaction of H₂S(g) with O2 (g) to form H₂O(g) and…

A:

Q: Carbon dioxide, CO2, is a byproduct of combustion reactions and an important greenhouse gas in…

A: The molecule of carbon dioxide (CO2) has a total of 8 valence electrons. This is because carbon has…

Q: Cis-[PtCl2(NH3)2] is a complex commonly known as cisplatin. When the two chloride ligands in this…

A: Paramagnetic: Contains unpaired electron Diamagnetic: There is no unpaired electron

Q: A student has prepared aqueous solutions for [Cr(NH3)5Cl]2+, [Cr(NH3)6]3+, and (Cr(OH)6]3- complex…

A: Given that The three aqueous solutions prepared by the student are  [Cr(NH3)5Cl]+2 ,  [Cr(NH3)6]+3…

Q: Identify the class of the following nucleotide component. NH₂ O pyrimidine O pentose sugar O…

A: Nucleotide is a monomer of nucleic acid. Nucleic acids are biomolecules.  One of the components of…

Q: The magnitude (but not the signs) of the standard reduction potentials of two metals, X and Y, are…

A: As electrons flows from X to Y, X acts as an anode while Y as cathod. Oxidation at X while reduction…

Q: What is the quantity of heat (in kJ) associated with cooling 183.9 g of water from 25.60 °C to ice…

A:

Q: As the moving proteins rotate, they put pressure on the beta protein. This pressure results in…

A: A) The formation of ATP from ADP and Pi. Explanation:- During chemiosmosis, the flow of hydrogen…

Q: Provide the names for the following (3 points each): a) Blank 1 b) Blank 2 c) Blank 3 Last saved…

A: We are provided some organic compounds and we need to write the IUPAC name of the compounds.

Q: The rate constant for this zero-order reaction is 0.0150 M s¹ at 300 °C. A →→ products How long (in…

A:

Q: Joules (J) are a measure of energy. Chemists often measure energy in calories (cal). If 1 cal =…

A: To convert the given energy in cal, we need to use the conversion factor given for J to cal.

Q: The term "carbon" in discussion of environmental policies such as carbon markets, carbon trading,…

A: A question based on environmental chemistry. A multiple choice question about greenhouse gases is…

Q: Cd (s)  +  2 H+(aq)    →    Cd2+(aq)   +   H2 (g)    Assign oxidation numbers to each element in…

A:

Q: Which is the more effective buffer?     0.35 M NaH2PO4/0.030 M H3PO4     0.35 M NaH2PO4/0.34 M…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: Which of the following statements is/are true? a. Mixing acetone and ethanol resulted in an increase…

A:

Q: Uranium-238 (238.050 787 0 u) is struck by a neutron (1.008 664 915 88 u) which causes it to undergo…

A: 92U238 + 0n1 = 56Ba138 + 36Kr94 + 3 0n1  Mass defect =…

Q: 4) Match the functional group represented in the following compounds a) CHÍCH:CH-O-CH;CHs A. Alcohol…

A: General formula of functional groups:  Alcohol: R-OH  Aldehyde: RCHO  Amide: RCONH2  Amine : RNH2 (…

Q: Draw Lewis structures, 3-D structures, and the name of the electron group geometry and molecular…

A: Number of electron pair on central atom (bp + lp)C Hybridization Molecular geometry Bond angle…

Q: (c) Draw the most likely conformations of the following compounds H and J and explain your…

A: Stable conformation has most of the substitutents ate equatorial position to avoid 1,3-diaxial…

Q: The boiling point of liquid A is 75.5 °C at 1 atm (760.0 torr). Its vapor pressure at 15.5 °C is 235…

A:

Q: In a calorimetry experiment, 15.0 mL 1.25 M HCl was calibrated with 10.00 mL 1.00 M NaOH inside a…

A: In a calorimetry experiment, the heat (q) lost or gained by any substance is calculated using the…

Q: What is the major monochlorination product that would be obtained from treating each of the…

A:

Q: A 1.00-mL reaction mixture (pH = 3.00) contains 6.39mM H2O2, 55 M H2O, 0.220mM O2, and 1.00µM…

A: Given: pH =3.00 Concentration of H2O2 = 6.39 mM Concentration of H2O =55 M Concentration of O2 =…

Q: 6Br² + 2Bi(OH)33Br₂ + 2Bi+ 60H™ In the above reaction, the oxidation state of bromine changes from î…

A:

Q: Calculate the pH of a solution made by mixing 200.0 mL of 0.64 M hydrocyanic acid (Ka = 4.9 × 10−10)…

A: Given: The Ka for HCN = 4.9 × 10−10 We have to calculate the pH of a solution made by mixing 200.0…

Q: 3 What is the name of the nucleoside formed by adding the guanine to ribose? O deoxyguanosine O…

A:

Q: Give clear handwritten answer with explanation

A: Phenylacetylene is an alkyne hydrocarbon containing a phenyl group. It exists as a colorless,…

Q: A sample of helium gas, He, has a density of temperature of 39°C. Submit Answer Retry Entire Group…

A: To find out the density, we need to use the formula which contains pressure, temperature and density…

Q: phosphodiester bond is the bond formed between the 0 0-P-0-CH₂ 0 + H 5' 0 Sugar OH 0=P-O-CH₂ 0 Base…

A: We have to tell how the phosphodiester bond is formed. Given that, the formation of the…

Q: Question 20 40 Listen Give the name and symbol for the element that has mass number 64 and 35…

A: This can be found by finding the atomic no of the given element. Since the atomic no is the no of…

Q: The boiling point of liquid E is 30.5 °C at 1 atm (760.0 torr). Its vapor pressure at -25.5 °C is…

A: Given, P1= 760 torrT1=30.5°C = 30.5+273 K =303.5 KP2=395 torrT1=-25.5°C = -25.5+273 = 247.5 K

Q: Javi wanted to use a Styrofoam ball calorimeter to determine the enthalpy of dissolution when NH4Cl…

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Q: AH for the reaction below is-826.0 kJ/mol. Calculate the heat change when a 56.75 g sample of iron…

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Q: Consider the products of the following double replacement reactions and determine the correct…

A: Precipitation reaction : It is type of reaction where a solid residue is produced called precipitate…

Q: | HAC CH3 1. mCPBA 2. Н300 Н3С- OH OH CH3 ОН пот OH CH3

A: Alkene reacts with peracid to form epoxide. Then protonation of epoxide takes place followed by…

Q: Match the descriptions to the structures. OH ABA Br AHA Br ACA OH AIA a tertiary alkyl halide a…

A:

Q: Find molecular formula of a compound with the elemental composition and molecular mass of 447.13…

A: We're given molecular mass compound = 447.13 g/mol  Percent composition of  C : 24.18%  H : 2.71%  N…

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.