(42-44) Given magnesium ion below, with the atomic number 12 and mass number 24, find the following: Mg2+ 42. Number of electrons: 43. Number of neutrons: 44. Number of protons:

Q: Find the equilibrium constant for the reaction below. At eq, Ecell are both equal 2 Fe³+ +31 = 2…

A: Redox reaction 2Fe3+ + 3I-⇌2Fe2+ + I3- Oxidation half cell reaction (at anode) 3I-  →I3-  +2e-   and…

Q: a. Draw a structure showing at least four repeat units of polyacrylonitrile {[CH2-CH(CN)]n}…

A:

Q: HCN(aq) H2 H CH3 Ni KMNO4 ČH3 HCI 12 N2OH Tollen's reagent CH;CH,NH, 2,4 - DNPH

A: The answer to the following question is-

Q: Today's high is supposed to be 277K! WOW! What is that temperature in °C & °F?

A:

Q: 8 Answer true or false. (a) Water is a good solvent for ionic compounds because water is a polar…

A: Ans. (a) True Water has a high dielectric constant and is polar in nature therefore ionic compounds…

Q: 42 Answer true or false. 42.2 (f) In a solution that conducts electricity, cations migrate toward…

A: The answer is as follows:

Q: Part 1 Calculate the pH of a solution in which (HO) = 4.26x103 M. Give your answer to two places…

A: Use relation  Ph=-log(H+) Ph+poh=14 M1V1=M2V2

Q: Assuming 100% dissociation, 1.0 mol of NaBr dissolved in 250 g of water [ [ Select ] have the same…

A:

Q: Balance the following chemical equations and Determine what type of reaction is observed…

A: Balanced chemical equation: it can be defined reaction in which number of atoms of all the elements…

Q: 3. These equilibrium constant are measured in the reaction below at 300 K: [Cu') = 0.148 M, [Sn]=…

A: Given, Temperature, T = 300K       [Cu+]eq=0.148M [Sn2+]eq = 0.124M [Sn4+]eq= 0.176M [Cu2+] = ? And…

Q: 5 Write equilibrium expressions for these reactions. (a) 2H,0,g)=2H,0(g) + O,g) (b) 2N,0,(g)=2N,O,g)…

A: Equilibrium constant is the ratio of  product of concentration of products raised to their…

Q: The major products A and B in the following synthetic strategy are (a) A= Me R & -OMe B= Me (c) A=…

A: full mechanism is shown below

Q: Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are…

A:

Q: The following reaction was allowed to reach equilib- rium at 25°C. Under each component is its…

A: K is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: 2. Write the following word equations as chemical equations. Be sure to include the states of matter…

A: Here we are required to find the chemical equation for given chemical reaction

Q: ypewritten for upvote. No upvote for handwritten. Thank you

A: (a) The properties that make water a good solvent are its polarity and its capacity for hydrogen…

Q: chemical reaction a. __Ca(OH)2(aq) + __H3PO4(aq) → _Ca3(PO4)2(s) + _H₂0) Reaction: b. __Na(s) +…

A:

Q: Part 1 Calculate the pH of a solution in which (HO)- 4.26x10 M. Give your answer to two places after…

A: We know that, pH is the negative logarithm of hydronium ion concentration. i.e.,…

Q: H3C HCI

A: Given is organic reaction. The given reactant is ether.The given reagent is hydrochloric acid. Ether…

Q: 5. Ammonia can be synthesized according to the reaction: N2 (g) + 3 H2 (g) → 2 NH3 (g) K, = 5.3 *…

A: The ratio of actual product formed to the theoretical yield is called the percentage yield of a…

Q: (e) Pressure has little effect on the solubility of liquids in liquids. (f) Pressure has a major…

A: Henry's law= which states that the solubility of a gas in a solvent is directly proportional to the…

Q: (b) Show figuratively using appropriate example of C3v point an group. C3'o»C² = 0v Ơy"

A: Well, we will consider a molecule which have C3v point group like NH3. we have to know the operation…

Q: C. Write the electron configuration of the following atoms and identify what Family and period do…

A: The question is based on the periodic table and electronic configuration. The electron configuration…

Q: 22 Describe how we would prepare the following solutions: 22 (a) 250 mL of a 3.6% w/v solution of…

A: As we know that  w/v% = w/v × 100 there fore a).  W=( w/v%× v )/100    W=(3.6×250)/100   W= 9g  by…

Q: d. Write the equation of state for and ideal gas and a Van der Waals gas 1. Ideal Gas 1. 2. Explain…

A:

Q: 27 A teardrop with a volume of 0.5 mL contains 5.0 mg NaCl. What is the molarity of the NaCl in the…

A: To calculate the molarity of the NaCl in the teardrop

Q: QUESTION 5 Provide the IUPAC name. HO, © GMU 2020 O (Z)-6-methylhex-2-en-6-ol O…

A:

Q: 5. The values of the coefficient of viscosity of carbon tetrachloride at different temperatures are…

A: The data given is,

Q: D. Give the quantum numbers for the last electron of each element given in Part II following the…

A:

Q: A. Methanal B. Cyclohexane Structural formula Odor Use/s Aldehyde or Ketone?

A:

Q: Calculate the pH of a solution in which (HO) = 4.26×10 M. Give your answer to two places after the…

A: We know that, pH is the negative logarithm of hydronium ion concentration. i.e.,…

Q: How many moles of NO(g) can be produced in the reaction of 3.00 mol NH,(g) and 4.00 mol 0,(g)?…

A:

Q: 2. A 0.696 mol sample of Cu is added to 136 mL of 6.0 M HNO,. Assuming the following reaction is the…

A:

Q: Balance the following chemical equations and Determine what type of reaction is observed…

A: Balance the given chemical reactions and identify the type of chemical reactions.

Q: -) Identify the following compound CH2C1 C1- -CH3 Br- H

A: If the priority groups are in clockwise order form higher to lower, the the stereochemistry is R and…

Q: Predict the effect of adding more H,(g) to a constant-volume equilibrium mixture of N, H, and NH,.…

A: In this question, we will see the effect on equilibrium reaction after addition of hydrogen gas in…

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.