QUESTION 1 1. For each of the following elements, write its charge when it becomes an ion: (Write the sign of the charge first, then the number.) Se Sr As Br P

Q: Any anion which is the conjugate base of a weak acid is itself basic. O True False

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Q: Tetrachlorosilane (SiCl4) has a normal boiling point of 57.65 °C and a ∆H°vap of 28.7 kJ/mol. What…

A: Given: The normal boiling point of tetrachlorosilane (SiCl4) = 57.65 °C ∆H°vap = 28.7 kJ/mol We have…

Q: geometry, indicate the molecular shape, determine hybridization, and determine if polar/nonpolar,…

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Q: Explain the measuring implications of Heisenberg's uncertainty principle.

A: In the given question, it is asked to explain the measuring implications of Heisenberg's uncertainty…

Q: Determine the mass (in grams) of xenon that contains: a) 6.96 moles of Xe b) 2.74 × 1024 Xe atoms

A: Since, Moles is the ratio of mass to the molar mass of the atom or molecule. Thus,

Q: Aluminum metal reacts with bromine according to the following unbalanced equation: Al (s) + Br₂ (1)→…

A: 4. Recall the given unbalanced equation,                      Al s  +  Br2 l  →  AlBr3 sWant to…

Q: 10 (Type your answer using exponential notation.) b. Suppose that the unpolluted lake, without acid…

A: The pH of a solution is expressed in terms of hydrogen ion concentrations and its formula is- pH =…

Q: Aspirin can be synthesized in the lab by combining salicylic acid (C7H6O3)C7⁢H6⁢O3) and acetic…

A: Here we are required to find the percent yield  for the aspirin synthesized

Q: Redox reaction: lodine Topical Solution, USP (Sodium iodide content)   1. State all the chemical…

A: This redox reaction involves S2O32- ions and I2 The half reactions are S4O62-+2e- ⇌2S2O32- Eo =0.08…

Q: A sample of oxygen gas at a pressure of 0.572 atm and a temperature of 24.4 °C, occupies a volume of…

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Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) SO2 + O2 → SO3 CONTENT SHOULD BE THESE…

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Q: Question 3. 6.8 mL of 2.5 M CH3COOH (acetic acid, commonly known as vinegar) was added to make a 3L…

A: we need to determine the acetate ion concentration in mg/L, ppb, and M. Given that 6.8 mL of 2.5 M…

Q: In a simple calorimeter, 150.0 ml of 1.000 mol/L NaOH (aq)is mixed with 150.0 ml OF 1.00 mol/L HCl…

A: Given data 150.0 ml of 1.000 mol/L NaOH (aq) 150.0 ml OF 1.00 mol/L HCl (aq) T 1= 25.00 °C T2= 30.00…

Q: Examine the potential energy diagram below and answer the following questions. a.Which letter(s)…

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Q: What happens to the equilibrium position of an exothermic reaction when you remove heat? shifts to…

A: From La Chatelier's principle we know that if a system is in equilibrium then if we change any of…

Q: Chemistry please answer in basic solution.

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Q: You are designing a process with acetonitrile as the solvent. The process conditions are T = 81 °C…

A: T= 81 °C = 354 K P = 560 mmHg Using the Antoine equation, determine if the acetonitrile will boil.

Q: What is the name of the compound with the formula K₂CO3 ? What is the name of the compound with the…

A: 1.Ionic compound contains cations  and ions. 2 while writting ionic compound   first write name of…

Q: Describe the following materials. What are they used for? a. Weighing bottles b. Desiccator and…

A: Weighing bottles, desiccator, crucible and filter paper are the laboratory utensils.

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) SO2 + O2SO3 CONTENT SHOULD BE THESE…

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Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) SO₂ + O2 → SO3 CONTENT SHOULD BE THESE…

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Q: 7.16 g of MgSO₄ is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: Dear student since you have posted multiple questions we will solve only first question for you if…

Q: Determine the number of formula units of Cr(ClO2)3 and moles of oxygen contained in 8.71 moles of…

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Q: Arrange the following types in order of increasing acidity: carboxylic acids, alcohols, phenols,…

A: The acidity of a compound depends on the stability of the conjugate base formed after a donation of…

Q: SO2 + O2 → SO3 CONTENT SHOULD BE THESE OXIDIZED REDUCED BASIC SOLUTION CHECKING

A: This is a redox reaction where reduction and oxidation occur simultaneously.

Q: Consider an aqueous solution containing H+, OH−, Ca2+, “H2CO3” [actually mostly CO2(aq)], HCO3−,…

A: Given species are: H+, OH−, Ca2+, “H2CO3” [actually mostly CO2(aq)], HCO3−, CO32−, Ca(HCO3)+,…

Q: convert 3.612*10^-5 kl to units of L

A: Here we are required to convert the unit of Kl to L.

Q: BALANCE REDOX REACTION (USE THE LONG METHOD WITH CHECKINGS) MnO2 + CrO3 → Mn + CrO4 - CONTENT SHOULD…

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Q: If a reaction involving a single reactant is first order with a rate conatsnt of 4.50 x 10^-2 s^-1,…

A: Here we are required to find the time needed for first order reaction to be 53% of initial…

Q: CH3CHCH₂CH=CH₂ + H₂O CH3

A: Basic concepts of addition reactions of alkene.

Q: Isopropanol, the compound commonly known as rubbing alcohol and shown below in Part 1, has a boiling…

A: Given information is,  Isopropanol, the compound commonly known as rubbing alcohol, has a boiling…

Q: f 355 mL of 0.325 M Pb(NO₃)₂ is added to 255 mL of 0.225 M K₃PO₄, how many moles of Pb₃(PO₄)₂…

A: we have to calculate the moles of Pb₃(PO₄)₂

Q: Suggest an explanation for the observation that the heat of fusion of a substance is always smaller…

A: The heat of fusion is the amount of heat required to convert solid into a liquid while that of heat…

Q: What are the possible sources of error in weighing.

A: During weighing, there may be various errors. There are various causes of these errors occurring…

Q: QUES The balanced net ionic equation for precipitation of CaCO3 O A 2Na+ (aq) + CO32- (aq) →…

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Q: When elemental copper is strongly heated with sulfur, CuS is produced: Cu(s) + S(s) → CuS(s) What…

A: Given, Cu(s) + S(s) → CuS(s) mass of Cu react = 34.1 g mass of S react = 56.7 g Theoretical yield of…

Q: Wing the chair templates, draw the two Chair han - H Unformations for the molecuk below. Label each…

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Q: The results for this part have been recorded in the part D of the Data Sheet. Go over the results…

A: We are given pH data for the addition of strong acid(HCl) and base(NaOH) to water and to a buffer…

Q: Suppose a small sample of pure X is held at -90. °C and 7.7 atm. What will be the state of the…

A: From the given graph,  pressure(in atm)  goes along y-axis and temperature(in K) along x-axis . The…

Q: Give the possible values for ml if n=4 and l=2. What type of orbital is associated with these…

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Q: The gas phase decomposition of nitrosyl chloride at 400 K NOCI(g) → NO(g) + ½ Cl₂(g) is second order…

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Q: Why is there a need to adjust the acid concentration of Group I cations before saturation with H₂S?

A: Group II cations are divided into two sub-groups, namely II A cations (known as Copper group) :-…

Q: What is the maximum numbers of electron in an atom that can have the follwimg quantum numbers of n=3…

A: Given n=3, l=2, m=-2 Here n,l and m denotes quantum numbers

Q: 1. write and balance: Hexane (C6H14) burns in oxygen (O2) to form carbon dioxide (CO2) and water…

A: Given Hexane (C6H14) burns in oxygen (O2) to form carbon dioxide (CO2) and water (H2O)  We have to…

Q: How many milliliters of a 5.90 MM NaOHNaOH solution are needed to provide 0.325 molmol of NaOHNaOH

A: Given -> Molarity of NaOH = 5.90 M  Mole of NaOH = 0.325 mole

Q: Which of the following variables is not a state function?   a. Entropy   b. Heat   c. Volume…

A: Those thermodynamic property which depends on initial and final state of system not on the path…

Q: classmate for the following reaction, 3.87 gm of Carbon (graphite) 14.4 gon of Oxygen gos. Carbon (…

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Q: II. Identify the type of organic compound (alkane, alkene, alkyne, alicyclic, aromatic, alcohol,…

A: Since you have asked multiple questions, we will solve the first three question for you. If you want…

Q: E. i and iii QUESTION 25 A CHE 107 student adds excess AgNO3 (aq) to 0.100 L of 0.200 M Na2SO4 (aq)…

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Q: 2. Substance A (a pure substance) is known to be in vapor-liquid equilibrium at T = 50 °C and p =…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.