Consider the figure in Chapter 7 of your textbook which shows the periodic trends in electron affinity.  When you look across a period (row),  why are the electron affinities of the Group 4A elements more negative than the electron affinities of the Group 5A elements? Group of answer choices The ratio of bonding radius to first ionization energy is smaller in 4A Atomic radii of the Group 4A elements are bigger than their corresponding group 5A elements Group 4A elements are more electronegative than the elements of Group 5A Group 5A half-filled p-subshells discourage the addition of an electron None of these choices explain the

Q: A 3.75-g sample of calcium carbonate was dissolve using 6 M HCI, and diluted with water to 500 mL. A…

A:

Q: Molecular vibration happens when an atom or molecule absorb IR radiation.

A:

Q: Baking powder contains sodium bicarbonate plus an acidic salt like sodium acid tartrate or calcium…

A: Please find your solution below : Baking powder is a mixture of sodium bicarbonate (NaHCO3), other…

Q: Answer the following:  Determine the percentage of acetylsalicylic acid present in the aspirin…

A: Mass of aspirin tablet = 73.82 g  Molar mass of acetyl salicylic acid = 180.158 g/mol  Molarity of…

Q: Particle size may be less important than the surface characteristics of the nanomaterial. (A) True…

A:

Q: Titration of the I2 produced from 0.2645g of primary standard KIO3 required 45.36mL of sodium…

A: Given :  Mass of KIO3 = 0.2645 gm  Molar weight of KIO3 = 214.001 g/mol  Volume of Na2S2O3 = 45.36…

Q: limiting reagent

A:

Q: | Pari B: The Nernst Equation: Zn Zn I CuCu (Prior to adding NH,OH) -1./04V 1. -1,086V E Zn ZnlCutCu…

A: Solution- Data given- E0cell = -1.104 v To find - Emf of Cell and Concentration of [Cu2+] and [Zn2+]

Q: The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present…

A: N(t)=N0 exp[-k t]N(t) is the number of radioactive nuclei remaining at time t, N0 is the initial…

Q: If a positron is to be emitted spontaneously, how much more mass (as a minimum) must an atom of the…

A: As in positron emission, the nuclear positive charge and hence the atomic number decreases by one…

Q: The rate equation for the reaction A→B + C is expressed in the forms of rate of disappearance of A =…

A:

Q: Calculate to five significant figures the binding energy in J/nucleon of the nucleus of an atom of…

A: Binding energy is minimum amount of energy required to remove one electron from atom

Q: Round all your Final Answers to 3 significant digits 1. Consider the following equilibrium system at…

A: Here we are required to find the equilibrium concentration of reactant and then find the value of…

Q: Arrange the following sets of organic compounds according to decreasing solubility in NaOH. 1.…

A:

Q: Silver thiocyanate forms the red colored compound with ferric ammonium sulfate after reaching the…

A:

Q: Examine the following equilibrium table for the reaction shown at the top of the table. COlg) +…

A: If Q= K -> reaction is at equilibrium position If Q> K -> reaction shifts towards backward…

Q: In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C…

A:

Q: Complete the following nuclear bombardment equation by filling in the nuclear symbol for the missing…

A:

Q: n aur Separation exPerimont using प्छान्टु TLC. we cam Conculde that no trans व2०tहकच्णाट has…

A: True : Trans azo benzene is symmetrical. Therefore trans azo benzene is less polar than cis azo…

Q: The fuel for a thermonuclear bomb (hydrogen bomb) is lithium deuteride, a salt composed of the ions…

A:

Q: Consider the following balanced equation: Cl 2(g) + 2 Br (aq) Br 2(aq) + 2 CI (aq) [CI 2] [Br ] Rate…

A:

Q: How many grams of NH3 can be produced from 40.0 grams of CaCN2? CACN2 + 3H20 CACO3 + 2 NH3

A:

Q: comparative analysis of organic compounds were done on various unknown samples labelled as A, G, N,…

A: Acid, smaller amine are soluble in water.  Larger amine, alkane and phenol are insoluble in water.

Q: For the gas phase decomposition of hydrogen iodide at 700 K 2 HI- H2 + I2 the average rate of…

A:

Q: Explain about degradation of azo dyes in wastewater using micro-nano bubble treatment.

A:

Q: Compute for the water activity of a bottled beef rendang containing 15g salt and 275g of water.…

A: Assuming the solution to be ideal, the water activity is equal to the mole fraction of water in the…

Q: The rates of many reactions approximately double for each 10°C rise in temperature. Assuming a…

A: Given,  A starting temperature of 22 °C, the activation energy, when the rate constant to be twice…

Q: What is true about the heated solution upon cooling? A. As energy is released, the concentration of…

A: As per bartleby guideline, an expert is allowed to answer one question at a time. Please re upload…

Q: The rates of many reactions approximately double for each 10°C rise in temperature. Assuming a…

A: Given-> T1 = 22°C = 22+273 = 295 K.    T2 = 32°C = 32 + 273 = 305 K K1 = k K2 =2k

Q: The activation energy for the gas phase decomposition of chloroethane is 254 kJ. CH3CH2CI C2H4 + HCI…

A:

Q: - Balance the following chemical equation. Show your complete solution. SiOz) + HF(aq) SIF4) SIF4) +…

A: Balanced the following cbemical reaction-->

Q: The reaction N204(g) = 2NO2(g) has a K, = 0.140 at 25 °C. In a reaction vessel containing the gases…

A:

Q: 80- 60- 40- 20- 0- 4000 3000 2000 1000 v/ cm 694.414 728.821 895.596 -1030.2 - 1081.17 -1178.61…

A:

Q: 30. Which of the following organic compounds is the least soluble in water? A. H,CH,COCH,CH, B.…

A:

Q: This isn't very clear. I need a concise explanation.

A: The concise explanation regarding the use of acid is needed to be provided.

Q: Which of the following mixtures can be titrated with separate endpoints? a. two strong acids b.two…

A: The mixtures that can be titrated with separate endpoints is

Q: 6*10 10 3000 v/ cm 2000 1000 -750.672 -864.37 -908.355 1017.8 -1052.29 -1119.21 -1221.98 1338.92…

A:

Q: determine the value of Ksp for Zn3(PO4)2 by constructing an ICE table.

A: Let molar solubility of Zn3(PO4)2 is equal to " s" mol/ liter.....

Q: Which is being referred to by the given statements? the quantity of three-dimensional space enclosed…

A:

Q: A voltaic cell based on different concentrations of ions, such as seen in the diagram below with…

A:

Q: Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value…

A: 1. Over ignition would cause the degradation of the precipitate.

Q: How many gallons of octane, C8H18, having a density of 0.703 g/cm³, would have to be burned to…

A:

Q: H2N HO. но Structure 1 Structure 2 Structure 3 Structure 4 Structure 5 46. Which structure has the…

A:

Q: - Balance the following chemical equation. Show your complete solution. NH3) + O2®) → NO@)+ H2O®)

A: Balance the following chemical reaction & show complete solution :  NH3(g) + O2(g) ---->…

Q: A 210-gram aluminum block at a temperature of 55°C is placed into an insulated container with 360…

A: The final temperature of the metal and ice is needed to be calculated if 210 g of aluminum block at…

Q: 0-4 Br Br A. 1-hydroxy-2,4,6-nitrobenzene B. 2,4,6-tribromophenol C. 2,4,6-bromohydroxybenzene D.…

A: In iupac nomenclature, firsr we select the parent long carbon chain which includes main functional…

Q: Question 21 An unknown sample of Cu2* gave an absorbance of 0.262 in an atomic absorption analysis.…

A: Beer's law states that the absorbance is directly proportional to the concentration of the absorbing…

Q: At 20 °C, the following concentrations were found for the gases in an equilibrium mixture for the…

A: Given-> At equilibrium- [NO2] = 0.27 M [NO] = 4.2 × 10-8 M [N2O] = 0.021 M T = 20°C = 20 +273…

Q: Arrange the following sets of organic compounds according to increasing solubility in water 1.…

A: The solubility of isomeric alcohols increases with branching because the surface area of the…

Q: Identify the number of Nitriles present in the molecular structure. N N. N-

A: The functional group is the atom or group of atoms which is present in the Molecule , and…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.