What is the symbol of potassium

Q: 2) Describe the different chemical and physical methods of preparing nanomaterials. Give their…

A: Different  chemical and physical  methods of preparing  nanomaterial.  There merit and demerits

Q: How many iron atoms are in one mole of iron (III) sulfate? What is the average mass in amu's of one…

A: we have to calculate the number of iron atoms in iron(III)sulfate  average mass in amu of one…

Q: Which sample of matter would you expect to have the highest density? A all the samples have the same…

A: Solid liquid and gases are three states of matter. We have given different samples of matter and we…

Q: Analyze a mechanism, including molecularities; write a net reaction; and identify any catalysts or…

A: Answer: Molecularity is related to step of the reaction while order of reaction is the power of…

Q: Are the six hydrogen atoms of C2H6 equivalent?

A: If two atoms have same chemical environment or bond connectivity then they will be equivalent.

Q: How can we learn how to balance chemistry equations?

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

Q: The density of gold (Au) is 19,32 g/cc. If the thickness of a thin sheet of gold is 0.1 x 10^-6 m or…

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Q: Using the periodic trends, indicate which of the following atoms has the largest first ionization…

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Q: QUESTION 6 If the atmospheric pressure is 190 torr, what is the pressure of the enclosed gas in a…

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Q: The gas phase reaction between hydrogen and iodine is proposed to occur as follows: step 1 fast:…

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Q: How many stereocentres are present in 2‑bromoethan‑1‑ol

A: Given -> 2- bromoethan-1-ol

Q: how many moles of sodium ion are present in a 34.68 mL sample of 0.325 M sodium sulfate

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Q: Review & Preview Read the passages. Answer the questions using the passage text. Highlight the…

A: The change which involves a change in the physical state of the matter without the change in its…

Q: The reaction A → C was performed and the concentration vs. time data below collected. time, s 0 3…

A: AO =INITIAL CONCENTRATION At = CONCENTRATION AT TIME  T k = RATE CONSTANT  t = TIME INTERVAL

Q: Shown below is a possible synthesis of the target molecule, starting with a substrate containing two…

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Q: Classify each of the following as primary, secondary, or tertiary alkyl halide. 1-chlorobutane…

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Q: what is a skeletal formula?

A: Organic compounds are made up of carbon and hydrogen. These compounds are called hydrocarbons.…

Q: Which has the smaller radius, atomic phosphorous (P) or the phosphide ion (P³-)? Phosphide ion (P³-)…

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Q: Determine the number of moles of H in each sample. 8.11 mol NH3 to mol

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Q: A group of Finnish scientists announced the discovery of the first argon compound, HArF, in 2000.…

A: We know, Ar is known as inert gas due to the presence of fully filled p-orbital.

Q: For the gas phase decomposition of hydrogen iodide at 700 K 2 HI(g) →→→ H₂(g) + 1₂(9) the average…

A: Answer: Given chemical reaction is: 2HI(g)→H2(g)+I2(g)

Q: S IUPAC name Provide HO JUPAC se IUPAC name: u

A: Fourth, sixth and seventh reaction involves bromination while fifth reaction is hydration. FeBr3 is…

Q: How many atoms are in 159 g of calcium? 159 g = 4.13 Incorrect atoms

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Q: Reminder: the relation between theoretical yiled (TY), actual yield (AY) and percent yield (%Y) is…

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Q: Chemistry Write the balanced chemical equation, including the physical states, for the reaction…

A: The complex, [Zn(NH3)4]2+(aq) present in the test solution has formation constant, Kf = 4*108  The…

Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

A: Answer: Power of concentration term of a reactant in the rate law is the order of reaction with…

Q: 1. Calculate the linear momentum for a particle described by 4(x) = Ne-kx), where -00≤x≤ 00.

A: According to eigen equation, the value of a physical quantity will be calculated by the following…

Q: The pressure on this gauge, with correct significant figures, reads 10.72 atm (the black numbers).…

A: The given reading is 10.72 atm Since there are four digit. Zero comes in between non zero number.…

Q: How many moles of atoms are in each elemental sample? 4.95×1021 Ca atoms to mol Express your answer…

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

Q: Does bromochloromethane contain a plane of symmetry? is it a chiral?

A: Does bromochloromethane contain a plane of symmetry? is it a chiral?

Q: 6. Clearly label the Lewis acid and Lewis base in each reaction. Fill in all lone pair electrons on…

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Q: 10.58 Consider the buffer system of nitrous acid, HNO2, and its salt, NaNO₂. HNO₂(aq) + H₂O(1) a.…

A: We are given a buffer of nitrous acid and its salt NaNO2. We are to discuss the purpose of this…

Q: On a blank sheet of paper, please redraw the following reaction and complete it with the needed…

A: HBr Addition to an Alkene is anti. HBr adds to alkenes to create alkyl halides. A good way to think…

Q: A + 2B → C The constant pressure heat capacity of A, B, and C are b₁ Cp (A) = a₁ + T Cp(B) = a2 +…

A: Kirchoff's law describes the change in the standard enthalpy of reaction with temperature and is…

Q: Write a balanced chemical equation for each of the following. Gaseous carbon monoxide reacts with…

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Q: Write condensed structural formulas, and skeletal structures for each structural isomer of C4H10.

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Q: OH H3C-C-CH3 OH systematic name: 1,2-dimethyl-1-ethanediol Incorrect Index

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Q: 1. 0.5 mole of monoatomic ideal gas, initially at 45 °℃ and 1 bar, is heated and allowed to expand…

A: Given - Moles of monoatomic ideal gas = 0.5 mole             Initial temperature = 45°C…

Q: What mass of the specified compound is formed in the following reactions? (Assume that the reactants…

A: Here, we have to find the mass of the products as required from the given balanced equation.

Q: The aurocyanide ion, [Au(CN)₂]¯ is a coordination complex of gold with two CN™ ligands. When silver…

A: Here we have to predict whether the complex anion Ag(CN)21- form compound with potassium or with…

Q: An evaporator is used to concentrate cane juice. 10,000 g of juice containing 38% mass/mass of sugar…

A: Given -> Initial mass of juice = 10000 gm  Initial concentration (m/m) of sugar = 38%  Final…

Q: when 30.5g of calcium and 56.6g of nitrogen gas undergo a reaction that has a 75.5% yield. determine…

A: Given that, 30.5 g of calcium reacted with 56.6 g of nitrogen gas to form calcium nitride. We have…

Q: why cyclohexane does not react with potassium permanganate? (combustion test) what happens if I…

A: Both cyclohexane and toluene are organic compounds.

Q: In what ways is a cell like a pot of soup? Select all that apply. The majority of it is water It is…

A: Answer is - Tha majority of it is water

Q: Does the structure of the solute affect the freezing point depression? Explain your answer.

A: This problem is based on colligative properties of solution. Depression in freezing point is one of…

Q: 8) a) Draw the structures of ethyl acetate, ethanol, 2-propanol and water. b) Based on the…

A: In this question mentioned four solvent , Ethyl acetate , ethanol , 2-propanol , and water. Firstly…

Q: Which statement is false regarding the equilibrium constant? A given Keq for a reaction is only true…

A: Answer: This question is based on the basic understanding of equilibrium constant.

Q: Break down the following chemicals into Pomp, if possible: H₂0(e), Ni(e). AN

A: In an atom, there is nucleus at the centre and electrons are revolving around it. Nucleus is made…

Q: What products are formed when each of the following reacts with HO−?  BF3+HO−⇌ CH3++HO−⇌…

A: Here BF3 , CH3+ , FeBr3 & AuCl3  reacts with OH-  to form adduct or stable molecules.

Q: Order the following solutions from lowest to highest pH: 1. 0.10 M NACIO II. 0.10 M KBr III. 0.10 M…

A: pH is the measure of acidity. It is obtained by negative logarithm of concentration of H+

Group 14 Elements

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