A complete atom is electrically neutral because the number of Group of answer choices A) protons and neutrons are equal. B) electrons and neutrons are equal. C) electrons and protons are equal. D) electrons is greater than the number of protons.

Q: For the H₂SO4 and NaOH titration, the endpoint is ideally reached when a green color is observed. If…

A: Given , titration of NaOH and H2SO4

Q: 4. Reaction type: 5. H₂S (aq) + Reaction type: CaCO3 (s)→ CO₂ (g) + Reaction type: 6. C4H10O (g) +…

A: Answer of this question :-

Q: Write a balanced equation for the reaction between gaseous methane (CH4)(CH4) and fluorine gas to…

A:

Q: مله HO

A:

Q: Which of the following are safe and effective techniques for drying organic solids recovered from a…

A: We know, drying techniques are the most important for organic compounds to be recovered in solid…

Q: Place the following in order of increasing acid strength among these perhalic acids.   (bonus…

A: Given HBrO4   HClO4      HIO4  find increasing acid strength

Q: Correctly complete each statement regarding the standard entropy of the substances indicated. The…

A: The entropy of a compound is related to the equation∆S=∆HT. So, entropy depends on the Temperature…

Q: The dose of a drug is 50 mg/kg of body weight once daily for 7 consecutive days. For a child…

A: The required dose is 50 mg/(Kg.day) for 7 days Weight of child = 90 lbs 1 lb = 0.453592 => Weight…

Q: A 100.0 mL solution containing 0.923 g of maleic acid (MW = 116.072 g/mol) is titrated with 0.306 M…

A:

Q: Detail answer in paragraph/essay form: Using Molecular Orbital Theory as a basis, why do…

A: It is based on HOMO and LUMO gap.

Q: A 34.00 mL sample of an H₂SO4 solution of unknown concentration is titrated with a 0.1322 M KOH…

A:

Q: Calculate the temperature (K) at which a reaction becomes spontaneous when ΔS = 771 J/mol-K and ΔH =…

A:

Q: draw bond line ch3ch2ch2(cl)ch3 cis-2,3-dichlorobut-2-ene plz help

A: Bond line representation is the one in which carbon and hydrogen are not shown while the other…

Q: Determine the enthalpy of reaction for 2CH4(g) → C₂H4(g) + 2H₂(g) using the equations: 2C₂H6(g)…

A:

Q: If the ground state of a reaction's product is lower than the ground state of the substrate, which…

A: Ground state of product is lower than Ground state of reactant.

Q: 3. Use the diagram to answer the following: 101 di haigge pe a. Identify the point of the graph…

A:

Q: A 10.00 ml sample of a solution of acetic acid in water was titrated to the endpoint by the addition…

A: Molarity is defined as moles of solute present in one litre of solution.  The reaction between…

Q: Would you expect MgCO3 to be more or less soluble in water or a saturated water solution of SrCl₂?…

A: When equilibrium shift in right direction then solubility of a compound increases that is more…

Q: Ammonium phosphate NH43PO4 is an important ingredient in many fertilizers. It can be made by…

A: A balanced chemical equation contains an equal number of atoms of each elements on both sides of the…

Q: Question 2 The combustion of ammonia proceeds by the reaction 4 NH3 + 702 4 NO2 + 6H₂O When the rate…

A:

Q: cat. H+ excess CH3OH -H₂O O

A:

Q: The decomposition of a particular chemical reaction follows zero order kinetics with a rate…

A:

Q: using what you can recall from this unit write one or two short paragraphs decribing ernest…

A: In this question, we have to write one or two short paragraphs decribing ernest rutherfords atomic…

Q: Draw an electrophilic addition reaction of a conjugated diene that produces more than two organic…

A:

Q: In a sample consisting of lysine, leucine, and glutamic acid, which will be eluted last from an…

A: Ion exchange chromatography separates proteins based on the net charge of amino acids at the given…

Q: An unknown metal crystallizes in a body-centered cubic unit cell. The edge length of the cell is…

A: In case of body-centered cubic unit cell, the relationship between edge length radius of atom is…

Q: 4. Would the separation of the grape soda dyes work equally well if you reversed the order of IPA…

A:

Q: Ethanol (C2H5OH)(C2H5OH) melts at --114 .C.C and boils at 78 .C.C. The enthalpy of fusion of ethanol…

A: For the first part, we have to calculate the heat required to convert 46.0 g of ethanol at -152 oC…

Q: If KOH solution were used in Part B instead of Ba(OH), solution, then the chem  A(OH)2 solution,…

A: Conductivity of a solution depends on the number of ions present in the solution.  More the number…

Q: What volume in mL of an 11.6 M HCIO, (100.5 g/mol) solution is needed to make 500.0 mL of a 7.59 M…

A:

Q: Does removing the water from a hydrate constitute a physical or chemical change? Explain

A: In this question, we have to explain removing the water from a hydrate constitute a physical or…

Q: The activation energy for a reaction is 533.2 kJ. The rate constant at 51.9ºC is equal to 1.57 x…

A:

Q: 1.) What is the concentration of lead in a saturated solution of lead(II) chloride?

A: Introduction: In a saturated solution of a particular salt, there is an existence of a dynamic…

Q: 6. A solution of potassium sulfide reacts with a solution of lead (II) nitrate to produce aqueous…

A:

Q: 2. Consider this two step mechanism for a reaction... NO3 + 0₂ N₂O5 Step 1 NO₂ +03 Step 2 NO3 + NO₂-…

A: Given  slow; - NO2 + 02 ---->NO3 + 03fastNO3 + NO2 ----> N2O5 “Since you have posted a…

Q: 1. The molar solubility of a soluble salt increases appreciably with increasing ionic strength of…

A: #1: Due to the increase in ionic strength, the dissociated ions obtained from the soluble salts are…

Q: (c) NHSO₂Ar OH BuLi [3 equivs.], then CO₂ then CF3CO₂H Ar = 2,4,6-tri-isopropylphenyl

A: According to the guidelines i am only able to solve the first question because rest of the questions…

Q: What is the major organic product produced by the reaction shown? CH3 CH3 (1) Os04 (2) NaHSO,…

A: OsO4 (Osmium tetraoxide) is toxic in nature and expensive reagent. It is highly electron deficient…

Q: If you have 3.0 x 10^24 atoms of Sodium, how many grams of Sodium do you have?  Your conversions…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Ammonium sulfate is added to an unknown mixture of ions. A precipitate forms. The solution is…

A: To identify the cations present in giving mixture of ions.

Q: Consider the reaction: A(g) = 3 B(g) At some temperature, enough A(g) was injected into an empty,…

A: Given reaction: A(g) ⇌ 3B(g) The initial pressure = 1.000 atm The equilibrium pressure of B(g) =…

Q: What is the mass of an object with a density of 2.3 g/cm3 and a volume of 3.54 cm3?

A:

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A:

Q: 1. How many moles are in 3.5 g of aspirin (C₂H8O4)?

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: How many gauche interactions for the following compound?

A: gauche interactions for the following compound

Q: Draw the major product expected from the following Diels-Alder reaction. Draw the appropriate…

A: Given  reaction between two compounds  Diels-alder reaction find major product

Q: The pH of a solution of HBr is 2.88 at 25°C. What is the H⁺ concentration in this solution?

A:

Q: UGREET Experiment 4-Prelab Assignment 1. A 0.219 g sample of an unknown organic acid was titrated…

A: Given -> Weight of sample = 0.219 gm  Molarity of NaOH = 0.0934 M  Volume of base = 39.52 ml =…

Q: Which substance has a standard enthalpy of formation of zero?

A: •Standard enthalpy of formation:- Standard enthalpy of formation is zero when a substance is present…

Q: 6. H₂C The structure of ß-carotene which is a yellow dye found in vegetables that is also important…

A:

Group 14 Elements

The following elements come under group 14 of the periodic table.