The atomic hydrogen exists in space at an estimated concentration of one particle per cubic meter. If the collision diameter is 2.5 ×10^(–10) meter and the temperature is 2.7 Kelvin, how many kilometers away will the next potential collision be? Express the answer in three significant figures.

Q: Average morality of NaOH= Dillo M+ 0,1|3 M + 0.1124 M 0.3354M 3. EO.112 M

A: Precision is the degree of closeness between the various experminental data obtained. Precision can…

Q: Write balanced equations for each of the processes described below. (Use the lowest possible…

A: Answer: Given reactions are radioactive decay reactions where nucleus of atom is transforming either…

Q: 22. A mixture of natural gas and air is stable at room temperature. However, if a piece of metallic…

A: The substances that are employed to produce heat along with the liberation of other gases are termed…

Q: a magnesium atom loses 2 electrons to achieve stability and a magnesium ion is obtained: a-translate…

A: A process in which the valence electron(s) of an atom removes and converts the atom into an ion is…

Q: Suppose that sodium pentobarbitol is used to anesthetize a dog. The dog is anesthetized when its…

A: Sodium pentobarbitol is an anesthetic drug. Here in this question all the datas and solution are…

Q: Write balanced equations for each of the processes described below. (Use the lowest possible…

A: The electron capture is transformation of atomic nucleus in which an electron from the atom is…

Q: Consider a block of wood having a volume of 125 cm³. If the block of wood burns at a rate of 15…

A:

Q: Describe characteristics of radioactivematerials that relate to radiationexposure and safety

A: Radioactive substances are atoms that decay naturally. They can give off alpha particles, beta…

Q: A sample of iron weighing 15.0 g was heated with potassium chlorate (KCIO3) in an evacuated…

A:

Q: Give the equation for the quantum yield for the path that has T2, @2: (Use the following as…

A: To determine: Equation for the quantum yield for the path Γ2

Q: Write about the potential for human exposure to lead

A: Lead is a naturally occurring toxic metal found in the Earth's crust. Exposure to high levels of…

Q: Can you identify the acceptable exposure limits for affected populations in occupational and…

A: Occupational exposure limits (OELs) are defined as the time-weighted average concentration of a…

Q: A water sample is found to contain the pollutant chlorobenzene with a concentration of 15 ppb (by…

A: Given, The concentration of chlorobenzene present in the water sample = 15 ppb (by mass) The amount…

Q: Consider a block of wood having a volume of 125 cm³. If the clock of wood burns at a rate of 15…

A: Calculation of mass of woodblock: The volume and density of woodblock are given. By using this…

Q: Is there another method to determine lead in shells without needing digestion? Explain the principle…

A: A question based on analytical process that is to be accomplished.

Q: TRUE OR FALSE 1. The age of fossils can be traced using isotopes C12 and C14 called Carbon dating…

A: Radiocarbon dating is based on the simple principle that all living things absorb carbon from the…

Q: The mercury-201 nuclide radioactively decays by electron capture. Write a balanced nuclear chemical…

A: Electron capture : In electron capture,  the inner shell electron is pulled into the nucleus where…

Q: 19. SO3² 20. NO, 21. H,О*

A: The question is based on the concept of chemical bonding.   by using VSEPR theory , we have to…

Q: A woman weighs 59.0 kg and is given 720. mg pills of a drug The concentration of drug inside the…

A: Half-life = 3hrweight of women= 59 kgmass of pills = 720mg∴ initial concentration of pill, N∘=…

Q: 6. Complete and balance the following equation. The missing term is ? + a → 263Db + n [A] 2 11SAg…

A: In the given reaction, and alpha particle is added and the missing term in the reaction needs to be…

Q: Write the nuclear equation for the decay of uranium- 239 through beta particle production.

A: The breakdown of any element into its isobar (same mass number) that results in the emission of fast…

Q: Give the equation for the quantum yield for the path that has T2, 02. (Use the following as…

A: Given: Γ =7.407×10-9 sTo Calculate:Quantum yield (φ2)

Q: The mercury-201 nuclide radioactively decays by electron capture. Write a balanced nuclear chemical…

A: We have to predict the reaction of mercury capturing electron.

Q: RA 6969 encompasses nuclear wastes Physical hazard may cause harm without touching

A: Answer : option a Statement 1 :Republic Act 6969 of the Philippines is likewise recognised as "Toxic…

Q: 15. It is due to diffusion. A. spread of fragrance in a room B. spread of radioactive particles…

A: The intermixing of the particles of one substance into another on their own is known as diffusion.

Q: Write the balanced nuclear reaction for the decay of iodine-137 to xenon-137.     Write the balanced…

A: Introduction : In a nuclear decay reaction  total mass number , atomic number of reactant side will…

Q: 5. Calculate the mass of CO2 evolved in the complete decomposition of a 2.943-g sample. containing…

A: Metal carbonate salt upon dissociation gives carbon dioxide and metal oxide. Write down the…

Q: Give at least 2 significant examples of chemical reactions that falls on change in intrinsic…

A: (1) Intrinsic properties are those properties in which properties not depend on internal amount of…

Q: The mercury-201 nuclide radioactively decays by electron capture. Write a balanced nuclear chemical…

A: Given : We have to write equation for electron capture.

Q: How long will it take for 98.6% of a sample of 18879 Au to decompose (t1/2 = 8.8 mins)?

A:

Q: 5. How many grams of Calcium will it take to replace 1 gram of Hydrogen?

A: No of moles = Mass / Molar mass

Q: In a thermonuclear device, the pressure of 0.050 liters of gas within the bomb casing reaches…

A: Given, In a thermonuclear deviceinitial pressure of gas =4000000 atmand initial volume of gas =0.050…

Q: What is the purpose of using Argon gas in ICP-MS?

A: In mass spectroscopy,  samples are ionized and identified as per their mass to charge ratio. Among…

Q: Explain the derivation of the calculation formula for AV of the two-stage rocket.

A: We have to prove: The derivation of the formula ∆V of two-stage rocket.

Q: Convert 2.735 KK to ∘C∘C (average temperature of the universe as measured from background blackbody…

A: In this question we have to convert following value of temperature from Kelvin to celcius ( K to °C…

Q: Which of the following matches the given data?   13C: δ 183, 164, 162, 160, 157, 155, 153, 52, 20…

A: Spectroscopy is useful in determining the structure of organic compounds. Given: 13C: δ 183, 164,…

Q: write the nuclear equation for the radioactive decay of polonium -209 by alpha decay

A: Po - 209 does not decay by alpha decay reaction  But if u still want the reaction for Po-209 alpha…

Q: U 18 X-3. :0:

A:

Q: What is the number of Cl atoms in a 784 gram pure sample of NC13? 18 VIA SA

A:

Q: How to calculate speed of cathode ray when you know p.d.

A: Answer - Cathode rays - Cathode rays (also called an electron beam or an e-beam) are streams of…

Q: For pH = 6.00, calculate the alpha one (a1) in an aqueous solution of citric acid. (Ka1 = 7.45 x…

A: PH of solution is 6. K1,k2,k3 are dissociation constant of citric acid.

Q: 14. In order for a gas to be a "greenhouse gas" it must A. transmit visible light and absorb…

A: Some gaseous molecules has a very unique property to absorb such infrared light which are returning…

Q: Which of the following elements undergoes nuclear fusion to provide the primary source of energy…

A:

Q: atmosphere and animal life assimilates C-14 through food chains. When a plant or animal dies it…

A: Half life (t1/2) of C-14 isotopes = 5730 years  C-14 radioactivity today = 74%

Q: Cd is a heavy metal that leaches at a rate of approximately 0.0012 milligram/liter per year.…

A: This question is better solved by using dimensional analysis concept. It is given that  rate of…

Q: 3. Lightsticks contain a substance that breaks down during a chemical reaction. A release of energy…

A: During a chemical reaction, when energy is released in any form be it light or heat,then the…

Q: (A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true…

A: True false