Detailed information about John Dalton should include some biographical information (socioeconomic background, family, education)

Q: MULTIPLE CHOICE Which of the following terms explains the release of enormous energy when a nuclear ...

A: Nuclear fission: In a nuclear fission reaction, the nucleus of an atom splits into two or more small...

Q: Which of the following substances has the lowest absolute molar entropy at 25°C?   Group of answer c...

A: The substances given are HCl(l), HCl (g), HCl (s), HBr (g) and HI (g).  

Q: Which of the following trends is true with respect to electronegativity? Question 1 options: a) It i...

A: 1. Which of the following trends is true with respect to electronegativity?  a) It increases from le...

Q: A skeleton equation does NOT show which of the following? the physical states of the substances the ...

A:

Q: What is the percentage composition of: (a) Cl in Chloric acid (Cl=35,H=1, O=16) (b) Na is sodium pho...

A:

Q: Compounds Alkyl halide Nucleophile SH CN

A: Nucleophile is defined as the electron rich species which donate electron pair and form covalent bon...

Q: Explain briefly in 2 sentences andin your OWN words. 1. NH4CNS used in the test for cobalt must be a...

A: Gravimetric analysis is one of the most accurate analytical methods available. It is concerned with ...

Q: How many moles of ammonium ions are in 6.955 g of ammonium carbonate? Sodium hydroxide reacts with ...

A:

Q: The rate law for a reaction is rate = k[A][B][C][D]. The units of the rate constant when the concent...

A: Unit of rate constant can be determine from the rate law expression.

Q: Explain the relationship between intermolecular forces, vapor pressure, and boiling point.

A: The relationship between intermolecular forces, vapour pressure and boiling point is given below.

Q: Identify the type of intermolecular forces existing between the two molecules mentioned: 1. MgCl2 (1...

A: A molecule that has polar bonds will be interacting with the other molecule if it is polar. The pola...

Q: Given that naphthalene is insoluble in water and sublimes easily upon heating, describe two methods ...

A: Given: naphthalene is insoluble in water and sublimes easily upon heating.  

Q: Identify each element below. part a) i. [Ar]4s23d104p4 ______________________ ii. [Xe]6s24f145d2 ...

A: Since you have posted multiple questions with multiple sub-parts, we are entitled to answer the firs...

Q: und rate c

A:

Q: Using data from Table 5.3, and that AH , ZnS = -201.1 kJ/mol and AH¡ , ZnCl2 = -415.1 kJ/mol, find t...

A:

Q: What is the molecular weight and empirical weight of butyric acid, the acid that is present in butte...

A: Standard data: The atomic mass of hydrogen = 1.008 u The atomic mass of carbon = 12.01 u The atomic...

Q: 0.550-gram sample of a nondissociating enzyme was dissolved in water at 25°C to yield 50.0 mL of sol...

A: Using osmotic pressure formula we can calculate molecular mass of enzyme. Formula is -              ...

Q: What I Have Learned (PORTFOLIO OUTPUT #4) Directions: Draw the structural formula for the given comp...

A: Molecule can be defined as species which is made up of two or more than two atoms.

Q: но H,0 он CH3 CBD

A: Alkene reacts with alcohol in presence of an acid catalyst by an electrophilic addition reaction mec...

Q: Correct the ones that are marked wrong:

A: 1 (b)                                                     BaSO4(s) + HCl (aq) -----------> No rea...

Q: Draw the major product(s) of the following reaction. KMNO4 H20

A:

Q: An unknown salt is either KBr, NH4Cl, KCN, or KHSO4. If a 0.100M solution of the salt is basic, what...

A: NH4Cl is salt of strong acid (HCl) and weak base (NH3). KCN is salt of strong base (KOH) and weak ac...

Q: Rank the following alkenes in order of decreasing values of Amax- structure A structure B structure ...

A:

Q: why do ice quickly melt when salt is added to it? Select one: a. salt solutions has a lower freezin...

A: When solute is added to solvent the freezing point of solution lower down called as depression in fr...

Q: Which method enables scientists to test a theory under controlled conditions?

A:

Q: The following cell has a voltage of 2.01 V. Find pk, for the weak acid. HA. Si(s) | Sio2| HA (0.31 M...

A: In the given problem, the pKa value for the weak acid HA is needed to be calculated, given that the ...

Q: a. Methylcyclopentane b. 3-Bromocyclopentene c. Cyclopentylcyclopentane d. 1,3-Cyclopentadiene

A:

Q: xp # 2: suppose you have a {Zn2+(aq), Fe3+(aq)} solution, and you’re asked to separate the two ions,...

A: we have the solution containing Fe3+ and Zn2+ here Fe3+ is group III cation and Zn2+ is group IV cat...

Q: How many grams of  KNO3  (101.11g/mol) are in 10.8 ml of a 1.25 M solution?

A:

Q: Propose a mechanism for the biosynthesis of terpene 13 from geranyl pyrophosphate 12. HO HO HO 12 14...

A: Monoterpenes are synthesized in the  plastids of plant cells from geranyl pyrophosphate (GPP) which ...

Q: derivative is studied. a. Indicate the reaction intermediate and product. b. Perform the reaction me...

A: Given : We have to make products for the following reaction.

Q: (a) The quantum number n describes the. * an atomic orbital and the quantum number e describes its o...

A:

Q: Data from a oxalate-permanganate titration to determine the amount of oxalate in a coordination comp...

A: Mass of complex sample used = 0.4 g Molarity of KMnO4 = 0.05 M Volume of KMnO4 used = 20.0 mL

Q: QUESTION 1 1. The concentration of an unknown weak acid solution is 0.25M, and the solution has a pH...

A: pH , Ka and concentration related detail mathematical calculation is shown below

Q: What amount (moles) of compound is present in 3.40 g of each of the following compounds? mol b. Fes ...

A: Given: Mass of compound = 3.40 g. The moles of any compound is given by, => Moles = MassMolar mas...

Q: At which pH is most of the carbon species H2CO3? А. 2 В. 7 С. 10.33 D. 14 8. Which one is a better e...

A:

Q: 3-Explain why the radionuclides of the neptunium decay series are not found in nature

A: Neptunium is a  radioactive natural elements which is often produced artificially.  So the radionucl...

Q: The reaction 2A + 2B → M + N has the rate law: Rate = k[A]2. At 25°C, k = 0.0110 L mol-1 s-1. If the...

A:

Q: e limiting reactant.

A:

Q: A piece of aluminum with a mass of 30 grams was heated in a steam jacket to 98oC and then plunged in...

A:

Q: QUESTION 1 You started with 100g of an isotope and, after 36, days you are left with 6.25g. What is ...

A: Question-1 Radioactive disintegration processes are first order reactions. Initial mass of isotope =...

Q: mass percent

A:

Q: topic: matter does each sample have a measurable mass? how do you measure the mass of each sample? ...

A:

Q: esa а.) b.) с.) d.)

A: All the given organic entities are examples of ketones and also several functional groups are presen...

Q: NH2 НО -F H,N

A:

Q: Predict the major product of this reaction. K2Cr207 H3O+ II HO2C. CO2H HO `OH II IV HO2C. HO

A: option D is correct 

Q: A solution contains 1 mole of liquid A and 3 moles of liquid B. This solution has a vapor pressure o...

A: 1st option is correct that is This solution exhibits a positive deviation from Raoult's Law.

Q: HN. NBS, ROOR, hv Br AICI,

A: Given : We have to check whether the given conversion is right or wrong.

Q: What is the mole fraction of hydrogen chloride in hydrochloric acid which contains 36% HCl by mass? ...

A: Given, % by mass HCl = 36 % Mole fraction of hydrochloric acid (HCl) in the hydrochloric acid soluti...

Q: Diagram an atom of nitrogen which consists of 7 protons, 7 neutrons and 7 electrons. Be sure to indi...

A: Answer -

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.