44. Explain why the diatomic nitrogen atom is unusable by most plants. Where do plants get nitrogen?

Q: What chemical species is primarily responsible for the cleaning action to remove volatile organic…

A: Volatile Organic molecules released as gases into atmosphere from certain solids or liquids and have…

Q: When conducting the electrolysis of water, two gases are formed.  Which of the statement is false?…

A: Electrolysis is a process in which electrical energy is converted to chemical energy.

Q: 10. Oxygen plays a major role in biological molecules. a role in polarity, bond Explain how oxygen…

A:

Q: How are carbon nanotubes formed? What are some interesting properties and applications for carbon…

A: Carbon Nano Tubes formation: Carbon nanotubes (CNTs) are developed using different methods in the…

Q: Enlist and explain the ores of Beryllium and methods of production of Beryllium

A: Beryllium is the element in the periodic table having the symbol ‘Be’ and atomic number 4. It is a…

Q: Some scientists have suggested that life on other planets in the universe may be based on silicon…

A: Given: Some scientists have suggested that life on other planets in the universe may be based on…

Q: Explain the chemical bonding between Potassium and Nitrogen using Lewis electron dot structure.

A: Ionic Bonding formed between potassium and nitrogen

Q: List the properties of Oxygen?

A: The elements of group 13 to 18 in the long form periodic table form the p-block elements. They have…

Q: Write the balanced equation for the synthesis of water. If we used 1.3 g of hydrogen with excess…

A: 2 molecules of hydrogen combined with one molecules of oxygen from 2 molecules of water.

Q: What is the state of dibromomethane at 110°C? O solid liquid gas

A:

Q: Tom put a piece of butter into the hot iron pan. Which of the following is an example of conduction?…

A: Heat is exchanged between substances in direct contact by conduction, which is the process of…

Q: Briefly explain why steel, an alloy of iron, is usedto build the supporting structure of many…

A: Given: Why steel, an alloy of iron, is used to build the supporting structure of many buildings.

Q: What is the difference between a rock and a mineral? 2. Why can the minerals in a rock be a clue…

A: Rock : A rock is an inorganic solid that has formed naturally and has no chemical composition or…

Q: What is the proper Lewis dot structure for neutral aluminum?

A: Lewis dot structure is the symbolic representation of an element or compound in which bonds between…

Q: What is the chemical formula for the compound formed between sodium and iodine?

A: The molecules which are formed by the combination of atoms of different elements are known as…

Q: How is manganous ion identified? What is the reaction involved?

A: Manganese is a chemical element having an atomic number 25. It is a transition metal. The atomic…

Q: Why is nitrogen innert

A: Nitrogen (N) is an element with atomic number 7 which exists as dinitrogen gas (N2) at room…

Q: 18. How do you determine the molecular shape of the portion of the molecule where carbon, whose…

A:

Q: The chemical analysis of a macromolecule has been provided. What is this macromolecule? Element…

A: The empirical formula of any compound can be determined by using the percentage mass composition of…

Q: What is the point of silicon dioxide? 8. Why are careful stoichiometric calculations important for…

A: 7)  The importance of airbag safety is that during an accident if airbags work properly, they can…

Q: How is the process of producing purified water? Step by step and what machine or equipment to used…

A: Water is an essential substance which is composed of hydrogen and oxygen. It exists in 3 forms, viz.…

Q: Explain the chemical bonding between Sodium and Nitrogen using Lewis electron dot structure.

A: The question is based on the concept of chemical bonding. we have to show how Sodium and nitrogen…

Q: An electrical insulator is a material

A: An insulator can be considered as a pure chemical element.

Q: Like CO2, water has two polar bonds but unlike CO2, water is polar overall. Explain why this is so?

A: Since we know that the molecular geometry of CO2 is Linear  and H2O is bent .

Q: 23. Use your answers to Questions 19-22 to help you explain what is going on at the atomic scale so…

A: In potatoes, there is salt and starch which is responsible for conducting electricity but chips have…

Q: Between which regions of the biosphere does carbon exchange most quickly? Select the correct answer…

A: biosphere is defined as the area between the earth surface and atmosphere of earth

Q: Write down the advanced steps of finding lead compounds?  Write at your own words

A: Lead compound is chemical compound that has pharmacological and biological  activity  which is…

Q: 1. If 23.6 grams of nitrogen are mixed with 17.3 g of hydrogen, how much ammonia may form?

A: Given :-  Mass of Nitrogen, N2 = 23.6 g  Mass of Hydrogen, H2 = 17.3 g  Mass of Ammonia, NH3 = ?…

Q: how does calcium react in space? im doing this for a project thats happening in nc where kids can…

A:

Q: Explain silicon.

A:

Q: Lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined…

A: Number of moles of Li2O = Given massMolar mass Here Given mass = 1000 g     1kg = 1000 gMolar mass…

Q: What is the ratio of N2 to NH3 according to this chemical equation ? 3/1 2/1 1/2 1/1

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: What is the electron configuration of Ar (argon)?

A:

Q: What evidence suggests that increasing concentrations of carbon dioxide are responsible for rising…

A: To find: evidence suggesting increasing concentrations of carbon dioxide are responsible for rising…

Q: What is used to test for chlorine? * A a glowing splint B damp litmus paper O C limewater

A: what is used to test for chlorine has to be given,

Q: N2 + 3H2 → 2NH3

A:

Q: The abundance of iodine in seawater is 5.0 × 10-8 % by mass. How many kilograms of seawater must be…

A: Given, abundance of iodine in sea water = 5.0 × 10-8 %             amount of iodine that is to be…

Q: 1. How is the crystal formed? 2. Is it beneficial or harmful to man or both? Discuss how it is…

A: The process by which a solid form, where the atoms or molecules are highly organized into a…

Q: Explain the reaction that occur between hydrogen and chlor

A: Given,

Q: why are argon and helium known as insert gases?

A: Inert gases are those gases which have completely filled outermost shell, and they do not react i.e.…

Q: Sulfur dioxide gas has many medicinal uses.  True  False

A: The given statement is false. Because sulfur dioxide is harmful to human body.

Q: 2. Write a chemical equation showing the transfer of electrons from sodium atoms to sulfur atoms to…

A:

Q: Explain the nature of Carbon monoxide ?

A: Carbon monoxide is a toxic gas with the chemical formula of CO. It has a molecular weight of 28…

Q: why water(H2O) is so special that it is responsible for life on earth?

A: Water molecules are polar, so they form hydrogen bonds. This means that water is partially charged…

Q: What is the chemical formula for the compound formed between manganese(IV) and chlorine?

A: Manganese (Mn) is a transition element and Mn is present in +4 oxidation state . Cl (atomic number =…