The reaction A→B has been experimentally determined to be second order. The initial rate is 0.0100M/s at an initial concentration of A of 0.300M. Determine the initial rate at [A]=0.900M.
Answers
Answer:
0.09 M/s is the initial rate when concentration of reactant A is 0.900 M.
Explanation:
A → B
1) Initial concentration of A = [A] =0.300 M
Rate constant of the reaction , k = ?
Rate equation for the second order kinetic is given as:
2) Rate of the reaction when initial concentration of A was 0.900M be R'.
[A] = 0.900M
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Which statement describes J.J. Thomson’s plum-pudding model of the atom?A. The electrons take up most of the space in an atom. B. The electrons in the atom orbit around the protons. C. The electrons are embedded in a positive sphere.
Answers
Trigonal planar is the three-dimensional shape of the molecule with this Lewis structure. Hence, option C is correct.
What is an electron dot structure?
Lewis dot structures also called electron dot structures are diagrams that describe the chemical bonding between atoms in a molecule.
According to the Lewis structure of formic acid, the carbon atom is a central atom and it has three bond pairs without any lone pair of electrons. In VSEPR theory, the double bond is treated as one bond pair for the prediction of the shape of the molecule.
Hence, formic acid will have a trigonal planar geometry around the carbon atom and tetrahedral geometry around oxygen atom as it has two lone pair and two bond pairs
Hence, option B is correct.
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trigonal planar which is answer choice c
b. AlCl2 + 2Cs yields 2CsCl + Al
c. AlCl3 + 3Cs yields 3CsCl + Al
d. 2AlCl3 + 6Cs yields 2AlCs3 + 3Cl2
Answers
Answer is C.
Explanation;
Single replacementreaction is a chemical reaction between an element and a compound. Theelement takes the position of another element in the compound by replacing.
Common equation is
A + BC → AC + B
Al is in 13th group ofthe periodic table. Hence, Al forms Al³⁺ by losing 3 electrons.Likewise, Cl is in 17th group of the periodic table and forms Cl⁻ by gaining one electron. Hence aluminiumchloride can be written as AlCl₃.
Cs is in 1st group ofthe periodic table. Hence, Cs tends to form Cs⁺ by losing an electron.
The reaction between Cs⁺ and Cl⁻ will form CsCl.
Since, this is a single replacement reaction, Al inthe AlCl₃ is replaced by Cs andCsCl is formed. The balancedreaction equation is
AlCl₃ + 3Cs → 3CsCl + Al
Answers
Answer:
(NH4)2CO3(s) → 2 NH3(g) + CO2(g) + H2O(g)
Explanation:
The balanced equation can be written when we know the chemical formula of each reactants and products of the reaction.
Ammonium carbonate = (NH4)2CO3(s)
Ammonia = NH3(g)
carbondioxide = CO2(g)
water = H2O(g)
The ammonium carbonate was decomposed in the reaction , so ,
(NH4)2CO3(s) → NH3(g) + CO2(g) + H2O(g)
The reactant is on the left side while the product is on the right side. Let us balance the equation to make sure every atom of element is same number on both sides of the equation.
(NH4)2CO3(s) → 2 NH3(g) + CO2(g) + H2O(g)
Final answer:
The decomposition of ammonium carbonate upon heating produces ammonia, carbon dioxide, and water. The balanced equation for this decomposition reaction is: (NH4)(HCO3) → NH3 + CO2 + H2O.
Explanation:
The decomposition of solid ammonium carbonate (NH4)(HCO3) upon heating produces ammonia (NH3), carbon dioxide (CO2), and water (H2O) in gas form. This is a specific type of reaction called a decomposition reaction, which breaks down a compound into its constituent parts. The balanced chemical equation informing this process is: (NH4)(HCO3) → NH3 + CO2 + H2O.
Note from this equation, it is clear that the ammonium carbonate completely disappears as it gets converted into gaseous products upon heating.
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table in the tools bar to fill in the corresponding
values.
Element
Electron
affinity
(kJ/mol)
Electro-
negativity
A
Bromine
324.6
2.96
B
B
Chlorine
А
00
С
Magnesium
0
С
D
Sodium
52.8
Answers
The missing components in the table to the right are indicated with orange letters. By using the periodic table and the tools bar corresponding values are (A) 349 (B) 3.16 (C) 1.31 and (D) 0.93.
What is Electron Affinity?
The electron affinity of an atom or molecule is defined as electricity launched when electrons are introduced to the outermost shell. Electron affinity increases from left to right across a length.
What's Electronegativity?
Electronegativity is described because the tendency of an atom attracts the bonded pair of electrons of covalent bond to itself. To a degree, the electronegativity Pauling scale is used.
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The missing components in the table to the right are indicated with orange letters. Use the periodic table in the tools bar and this link Web Elements to fill in the corresponding values. A B C D E F G. 2. See answers. Log in to add ... F = 737.7kJ/mol. G = 495.8kJ/mol. Explanation: We are asked some of the ...
2 answers
Answers
by changing the subject of formula, x = 0.1L × 8M = 0.8mol
given the no. of mol of KNO3, mass of KNO3 is given by no. of mol multipled by the relative molecular mass of KNO3.
mass = 0.8mol × 101.10g/mol (or whatever your periodic table says) = 80.88g
Answers
Answer:
7 : I think it is because heat rises, and to make the hot air balloon ride is the fire torch inside it.
Explanation:
I donno 9