20. Complete and balance the equations a. NaHCO3 (s)→ 21. How could you simply test for the presence of CO32 in an unknown?

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: Which of the following releases Hydrogen Sulfide? a. Solar Energy b. Biomass Energy c. Wind…

A: There are various methods to generate energy that is required for various purposes. They are mainly…

Q: Why are group 17 elements more reactive than other elements

A: Periodic table is an assembly of elements,in which all the elements are arranged according to their…

Q: In which units does the concentration of radon measured?

A: Radon is a radioactive colorless inert gas. It belongs to the 18th group in the periodic table with…

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: The fundamental force underlying all chemical reactions is

A: Chemical reaction  are concerned with the bonding  between atoms. The bonding between atoms  is…

Q: Calculate the mass equivalent of the energy released by the complete combustion of 2 mol of methane…

A: Given, Number of moles of Methane = 2 mole  Energy released for the combustion of methane = 1780 KJ…

Q: Since the rate of ozone destruction depends on [Cl], can Cl be considered acatalyst for the reaction…

A: CFC molecules are made up of chlorine, fluorine and carbon atoms and are extremely stable. This…

Q: A 93.6 g sample of ground water is found to have a lead concentration of 15.65 ppm. Calculate the…

A: Given : Mass of sample = 93.6 g Concentration of lead = 15.65ppm

Q: Choose the correct equation below for the reaction that occurs when Ca(NO3)2 dissociates in water

A: Calcium nitrate is a nitrate salt so it will definitely dissolved in water to form corresponding…

Q: Summarize the causes and effects of radon gas on health. How can it be controlled?

A: Sources of Radon exposure: 1. Soil :  Radon gas is a element found in soil and rocks.  Radon gas…

Q: Complete and balance the following equations. U

A: Balanced reaction has same number of atoms of elements on reactants and products side

Q: How does hydrocholoric acid and sodium chloride isolate barium-137 from cesium source?

A: Interpretation -  To tell about how does hydrocholoric acid and sodium chloride isolate barium-137…

Q: Describe how the potential energy of uranium is converted into electrical energy in a nuclear power…

A: The heat produced from the nuclear fission reaction is carried by nuclear reactor coolant and send…

Q: What isotope of radium (Ra) is converted into radon-222 by x emission?

A: Ra is radioactive element. A radioactive element undergoes nuclear reactions such as beta emissions…

Q: Why toxic effects of carbon monoxide are strong in case of human beings?

A: Carbon monoxide is a neutral oxide which does not show basic or acidic properties when dissolved…

Q: Write the balanced nuclear equation for the synthesis of darmstadtium.

A: The balanced nuclear equation for the synthesis of darmstadtium is to be written. In the balanced…

Q: What is the natural source of N20 in the atmosphere?

A:

Q: What substance acts as the moderator in a pressurized water generator?

A: A type of light-water nuclear reactor is pressurized water reactor (PWR). They constitute the large…

Q: Write the basic equilibrium equation for TeO₃²⁻

A: TeO₃²⁻ will react with water and gets one proton and the new compound is formed.

Q: electrolysis of aluminum, a 5A current is passed through electrodes for 2 hour. Calculate the mass…

A: Aluminium electrolysis using current implies deposition of Al3+ to Al metal Al3+(aq)+ e- → Al(s)…

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: How’s would you explain to a friend what you have learned about why lead contamination happened in…

A: Presence of high levels of lead (Pb) is very much detrimental to health. It causes damage to the…

Q: Write the equation for the formation of calcium hydride. 5.

A: Solid Calcium react with Hydrogen gas at 350 oC to formed Calcium Hydride.  Ca (s) + H2 (g)…

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: Calculate the grams of KAl(OH)4 produced when 1.00 grams of Al is used initially in this lab.

A: Given that : Mass of Al = 1.00g Mass of KAl(OH)4 =?

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

A: No of moles = Mass / Molar mass

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: Please define each around 50 words. Nuclear Fission, Nuclear Fusion, Preparation and uses of Group…

A: Nuclear fission is a term corresponding to nuclear reactions. Nuclear fission is defined as the…

Q: Importance of carbon dioxide academically, personally, and to the society?

A: Carbon dioxide is essential for internal respiration in a human body. Internal respiration is a…

Q: Discuss other medical applications on the use of EDTA to treat poisonings by radioactive materials…

A:

Q: How does the presence of a nuclear power plant impact the economy of local communities and the lives…

A: 1. Presence of nuclear power plant on the economy is very positive as it creates many jobs to the…

Q: How long would it take, in minutes, for the amount of lead-196 to decrease from 80.0 mg to 10.0 mg?

A: Since we know that radioactive isotope decay occurs by first order reaction . So using half life…

Q: Balance the equation and determine the reaction. 222 Rn -> Не 86

A:

Q: What is the allowable contamination of Aluminum?

A: The contamination in water is the presence of unwanted chemicals, microbes, and physical alterations…

Q: What type of reaction is 2KI − > 2K + I2

A: Ans. The given reaction  2KI ------->> 2K + I2 This is redox type reaction in which  2I-…

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

A:

Q: 6. a. Describe what happens when you blow exhaled carbon dioxide in the water. b. Write an equation…

A:

Q: If 23.6 grams of nitrogen are mixed with 17.3 g of hydrogen, how much ammonia may form?

A:

Q: Find out the uses of carbon 14 and phosphorous 32.

A: Carbon 14 is a radioactive isotope of carbon which has six protons and 8 neutrons. Because of…

Q: Calculate the mass equivalent of the energy released by the complete combustion of 4 mol of methane…

A:

Q: Suppose 4.57 g of C5H12 completely combusted. How many kJ of energy would be released? (207 kJ) е.

A: Given that, On combustion of 10g of C5H12 , 453 KJ of heat released.

Q: 1) List 3 possible reasons why you might not observe a reaction even though the activity sreies…

A: Reactivity series is the series of metals placed according to their reactivity from highest to the…

Q: Which process is used as nuclear energy application for Uranium enrichment?

A: Uranium enrichment is a process that is necessary to create an effective nuclear fuel out of mined…

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

A: True false

Q: nuclear equation

A: