7Mg → _ 24 12 登Mg

Q: Balance the following equation: 40 20 40 K K Ca+? 19

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Q: Calalate the threshold energy for the following reaction : K+ + 2 T 2rt

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Q: 3. Carry out each of the following conversions mg a. 450 µg / mL to mL b. 0.15 g/L to mg/mL 4. A…

A: According to Bartleby guidelines only one question is allowed to be solved at a time therefore I am…

Q: A certain reaction has an activation energy of 51.73 kJ/mol. At what Kelvin temperature will the…

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Q: The atomic mass of a helium atom is 4.0026 u. Convert this mass to units of kilograms and MeV/c2.…

A: Given : atomic mass of helium atom = 4.0026 u  we know 1 atomic mass unit = 1/(6.022 x 1023) gram…

Q: 2. Consider radium, which has a half-life of 1620 years. How many atoms of radium will decay in 5 s…

A: We have a Radium sample of mass m=15 g=0.015 kg which has a molar mass of M=226 kg and half life of…

Q: KO2 is used in a closed-system breathing apparatus. It removes carbon dioxide and water from exhale…

A: Given information: Mass of O2 = 235 g Mass of KO2 = 123 g

Q: 3. A 5 gm/100 ml solution of drug X is stored in a closed test tube at 25°C. If the rate of…

A: Given data The initial mass is mo = 5 gm The initial volume of the drug X is Vi = 100 mL The rate of…

Q: What is compound

A: A chemical compound is a chemical substance composed of many identical molecules composed of atoms…

Q: 1. How do you describe an atom in terms of composition?

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Q: 1. Which two elements are most similar? a. Fe and Co c. Cu and Ag b. Li and F d. H and O O A O B

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Q: What is the Q-value for the reaction where the products are 0.005 0 u less than the reactants? (1 u…

A: Given information: Here, Δm is the difference between the product and reactants mass.

Q: 9. Determine the components of reaction at A and B. 600 N 800 N-m B 1.5 m 1.5 m 2 m 2 m- 45 D

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Q: 20 What is the force of repulsion between two argon nuclei that are separated by 1.0 nm (10 m on an…

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Q: Express the nuclear composition for each below: (a) C-14 (b) a common stable Potassium atom (c)…

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Q: 4. Find the atomic spacing in a crystal of rock salt (NaCl), whose cubic structure. The density of…

A: Density (ρ) = 2.16 x 103 kg /m3Avagadro number = 6.022 c 1023 /moltotal mass of NaClM =  Na++ Cl-…

Q: The KP of a reaction depends on temperature only. It is independent of the pressure of the…

A: The equilibrium constant KP of a reaction depends only on the temperature of the reacting system. It…

Q: 5. What are the weights of (a) 1 curie and 1 rd of Ra? (b) 1 curie and 1 rd of Rn? (c) 1 microcurie…

A: We are allowed to give the explanation of first three subparts of a question only which is given…

Q: A uniform disc of radius R and mass m is connected to a wall by string oflength 2R. The normal…

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Q: (iv) Assume that the concentration of NO2 in Delft today is 50 ug/m'. Convert that to ppb (show the…

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

Q: Balance these chemical equations. (Use the lowest possible whole number coefficie (a) AgCl, + H, →…

A: SOlution: To balance the chemical equation.

Q: Please see 3c

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Q: 2. The resting concentration of calcium ions, Ca* (valence Z=2 for calcium), is about Cn mole/liter…

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Q: 2. The following endothermic reaction is allowed to reach equilibrium. NH+HS (s) = NH3 ) + H2S (g)…

A: Introduction Le Chatelier's principle states that if a dynamic equilibrium is disturbed by…

Q: 2. Explain the interactions between non-bonded atoms in molecular mechanical methods (Non-bonded…

A: Non bonded particle :not involving a chemical bond nonbonded interactions also : nonbonding…

Q: 3. A mass of 135 g of a certain element is known to contain 30.1 × 1023 atoms. What is the element?

A: mass, m = 135 g  number of atoms, n = 30.1 x 1023

Q: You could swallow a capsule of germanium without ill effects. But, if a proton were added to each of…

A: One can swallow a capsule of germanium without ill effects. Because it contains 32 protons…

Q: 2. Can a 1kg mass balance 1000kg a mass? How?

A: Yes we can balance a 1000 kg mass by a 1kg mass by using torque balance method. How we can balance…

Q: How many neutrons in the following element? 238 92 Select one: O a. 238 O b. 92 O c. 330 O d. 146

A: Given: The atomic mass of the element is 238. The atomic number is 92.

Q: Iodine-131 is often used to treat Graves' disease or hyperthyroidism. In Graves' disease the thyroid…

A: Note that the half-life (T) of 131I is approximately 8 days. Let the initial amount of 131I at the…

Q: A drug has a half-life of 6 hours. The drug is administered by I/V injection, and immediately after…

A: Half-life is the time required for a quantity to reduce to half of its initial value.…

Q: An old campfire is uncovered during an archaeological dig. Its charcoal is found to contain less…

A: The expression for the age from the radioactive decay law,

Q: Aluminum (Al), with an atomic weight of 27, combines with oxygen (O), with an atomic weight of 16,…

A: Given, The atomic weight of the aluminium is 27 The atomic weight of the oxygen is 16 The mass of…

Q: 19) What is the amount of starting material when 0.35-g remain and the number of half-lives is 2.72…

A: Let N be defined as the amount remaining. Therefore, N=12nN0N0=2nN Here, N0 is the initial amount of…

Q: While researching for her class presentation, karen has read that natural occuring Gallium consists…

A: Given in question -  60% Ga (atomic mass=68.911)                                    40 % of…

Q: A certain first-order reaction A - B is 25% complete in 42 min at 25°C. What is the half-life of the…

A: Here 25 % of reaction completes in 42 minute, then N=N0e-λt34N0=N0e-λ42e-λ42=0.75-λ42=-0.287λ=0.0068

Q: An isolated LiCl molecule has its chloride ion (mass = 35 atomic mass units) at x = 0 pm , and its…

A: Correct option is (c) 42 u .

Q: What is a compound? Cite three examples.

A: A chemical compound is any substance composed of molecules consisting of atoms of two or more…

Q: A sample of carbon tetrachloride rose to a height of 4.76 cm at 20°C in a capillary tube having an…

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Q: What is the missing product from this reaction 32 p 325+ 16 15 O A B B) 0 D) ¦e

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Q: 50 45 40 35 30 25 20 15 10 B Extent of reaction (a) What is the Enthalpy of the above energy curve?…

A: Ques:

Q: 2. If the birth rate was 1.3%, how many individuals were born that year? O2,683,450 O 3,144,591…

A: Given  Population total in 2018 is = 241,891,650 To find Individuals born that year

Q: 2. If the energy of the reactant is greater than the energy of the product, will the energy be…

A: The reactions are broadly classified into 2 types. They are exothermic or endothermic based on…

Nuclear Reactions

Nuclear reactions are processes in which the fundamental characteristics of a nucleus changes. They change into a completely different nucleus. These processes occur naturally in an unstable nucleus. Bombarding an energetic particle can induce nuclear reactions.  In this article, both the naturally occurring nuclear reactions are termed as radioactive decay and the induced nuclear reactions are further categorized as nuclear fission and nuclear fusion.