Pls help ASAP on this question

Q: 5. What is the name of a chemical used between the electrodes in a cell or battery? A. Electronic…

A: The device in which electrical and chemical energies are interconnected is known as an…

Q: Complete the blanks in the table. Element 12C 13C 14C 16C 16C2-ion 180 23 Na 23 Nation Number of…

A: An atom consist of electrons, protons and neutrons.In case of neutral atoms, number of electrons =…

Q: What is the IUPAC name for the molecule shown? 0₂N 3-ethoxy-1-nitrocyclohexane…

A:

Q: Antacid is a common household example of a(n) acid O base buffer

A: Antacids are the substances which we use to treat excess acid produced in the stomach. Antacid…

Q: What element is being oxidized in the following redox reaction? Cr(OH)4 (aq) + CIO¯(aq) ? CrO₂²¯(aq)…

A: In this question we have given a chemical reaction and we have to explain that which element in this…

Q: 1. Draw the line-angle formula of cis-2,3-dichloro-2-pentene. 2. Draw the line-angle formula of…

A: Details

Q: Click the "draw structure" button to launch the drawing utility. The structure below contains a…

A:

Q: Highlight the most acidic of the H atoms shown in each molecule below. Note: if there are two or…

A:

Q: Which elements have only one electron shell? O carbon Ohydrogen O helium

A: The electron configurations of the given elements are:carbon: [He] 2s22p2hydrogen: 1s1helium: 1s2

Q: im confused because there is no carbon atom, its only nitrogen and two hydrogens.

A: Answer:The question asked is based on the bond line representation of a molecule in organic…

Q: Question 15: Which would be the best choice to make a pH 3.7 buffer? Cyanic acid/sodium cyanate…

A: Answer:Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: Calcium cyanamide (CaCN₂) reacts with water to form calcium carbonate(CaCO3) and ammonia (NH3) based…

A:

Q: The EPA's secondary standards for contaminants that may cause cosmetic or aesthetic effects in…

A:

Q: Calculate the heat of formation for 2 C(s) + 3 H2(g) −−→ C2H6(g) if we know: i) C(s) + O2(g) −−→…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: What is the octet rule? O Atoms want eight electrons in their shells. Atoms want their outer…

A: The octet rule is a guideline in chemistry that states that atoms tend to gain, lose, or share…

Q: Calculate the percent by mass of KCI in a saturated solution of KCI in water at 45°C. See the figure…

A: Solubility Curve:Solubility curve represents the Solubility of a substance per 100g of water at…

Q: Predict the product for the following reaction. Br OH Mg/ether MgBr II 1. H 'H 2. H₂O Br III Br

A: The reaction of bromobenzene with magnesium in ether solvent and subsequent reaction with…

Q: What is the secondary structure of DNA? a.  double helix b. random cail c. An alpha-helix d.…

A: Answer :-- The secondary structure of DNA is :- (a) double helix.Here, it is means that the DNA…

Q: How would you make these compounds? H ZI OH CO₂H NH₂

A: Here, we have to synthesize 4…

Q: 2. Explain the stereochemistry and labelling pattern in this reaction. t-Bu t-Bu de de…

A: We have been given an enantiomerically pure compound 18O labeled…

Q: 1a. Draw the condensed structural formula for 1-propanamine.  1b. Draw the line-angle formula for…

A: 1)The formula which shows exact arrangement of atoms in molecule in  which we show only atoms and…

Q: An unknown compound, X, is thought to have a carboxyl group with a pKa of 2.0 and another ionizable…

A: Given ,An unknown compound X have a corboxyl group with pKa = 2.0 , and another ionisable group with…

Q: Identify the functional groups present in the given pair of compounds. Select all that apply. OH…

A: The atom or group of atoms which determines chemical properties of compound is called as functional…

Q: What concentration of oxalic acid, HOOCCOOH(H2A), will have a pH of 2.50 (pKa1 = 1.25; pKa2 = 4.14)?

A: Given:pH = 2.5pKa1 = 1.25pka2 = 4.14The pH of a solution is determined using the negative logarithm…

Q: Which of the following terms describes the mechanism for the Diels-Alder reaction of 3-butene-2-one…

A: Answer:Any chemical reaction in which two unsaturated compounds combine to form a cyclic product is…

Q: Predict the product for the following reaction. 2-methyl-1-propanol PBr3 Mg/ether 1. CO₂ 2. H3O*

A: In the given reaction the alcohol reacts with phosphorous tribromide to form alkyl bromide which…

Q: What is the product of the following reaction? I. II. -CHCH3 OH CH3 CH3 III. IV. V. H₂SO4 ? heat…

A: Given,The reaction:

Q: What is the major product of the following reaction? Mg, diethyl ether CH3CH₂CHCH₂CH3 Br…

A:

Q: You take three compounds, each consisting of two elements (X, Y, and/or Z) and decompose them to…

A: We are given with masses of elements and we have to find out chemical formula.It is a simple…

Q: Which of the following choices shows the elements manganese, silicon, and sulfur arranged in order…

A: Given three elements Mn ; Si and SArrange the electrical conductivity in decreasing order

Q: Of the following species, which contain(s) a C3 axis but no horizontal mirror plane? 1. PBr3 II.…

A: the C3 axis represents a threefold rotational symmetry in a molecule, while the sigma plane is a…

Q: 3. What is the normality of a 3.00 N KOH solution? 4. What is the normality of 20g HC1 in 100 ml of…

A:

Q: The highlighted O atom. H₂C CH3 Hybridization: 3 Molecular geometry: bent 09 X 5

A: Steric number = number of lone pairs electrons on the central atom + number of bond pairs to the…

Q: What is the correct formula of chromium (III) chloride? Cr3Cl Cr3Cl2 CrCl3 CrCl Cr₂Cl3

A: We have to write the correct formula for the chromium (III) chloride.The given options are shown…

Q: Apparently this is wrong. Are there any updates regarding it?

A: Apparently this is wrong. Are there any updates regarding it?

Q: 3) The figure below represents the moving particles of a gas within a rigid container. Each circle…

A: The speed of a gas particle depends on the temperature of the gas and its molar mass. The average…

Q: 6D.17 Calculate the pH of (a) 0.63 M NaCH3 CO₂ (aq); (b) 0.65 M KCN(aq).

A: Given (a)Concentration of NaCH3CO2 = 0.63 MpH of NaCH3CO2 = To be determined (b)Concentration of…

Q: 7. Calculate the theoretical yield when 0.838 g of CaCl₂ 2H₂O and 1.614 g of Naloare 3 used in this…

A:

Q: Which of the following compounds is a meso compound? Multiple Choice O O (2R, 3S)-dichlorobutane…

A: Molecules have four different substituents attached to one carbon atom have a chiral centre and the…

Q: Select the most electronegative element from the list below. ΟΗ OC OE ΟΝ

A: Electronegativity is a measure of an atom's ability to attract and hold onto electrons when it forms…

Q: 4 1.2 × 10 m 2 cm --0-02 = S ms

A:

Q: A student needs to determine the density of an irregularly shaped object. This student prepares a…

A: Given:Density of Glycerol density = Density of Isopropanol density =The volume of Glycerol = The…

Q: A solution is prepared with 1.0×10 -2 M NaCl, 2.0×10-2 M CaCl 2, 1.0×10-3 M NaHCO3 and 5.0×10-4 M…

A:

Q: (a). Calculate the internal energy of a 1.5 moles of argon gas at 298 K. Assumé ideal gas behavior.…

A: INTERNAL ENERGY:  a certain amount of energy carried by a system which varies with changing the…

Q: Graph the heating curve of ethanol using the information given. Check off each box as you add…

A: The heating curve is a heat added-temperature curve in which added heat is plotted on the x-axis and…

Q: How many grams of ice (at 0.00 °C) would be melted by the energy obtained as 15.5 g of steam is…

A: Latent heat is defined as the heat required to change the physical state of the substance and not…

Q: [HCl] 10-1 10-2 10-3 10-4 10-5 10-6 10-7 pH

A: [ HCl ]                         pH…

Q: How many hydrogen bonds does this molecule have?

A: We have to find out total no. of  H-bonds that are formed by the given molecule.

Q: If the pka of molecule 'A' is 2.2, then molecule 'B' will be present in the H3C A COOH neutral…

A: Answer:Presence of -I effect group in the carboxylic acid increases its acidic strength. Higher the…

Q: Rank the following in order of increasing acidity starting with the least acidic compound as 1 and…

A:

Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.