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Is when it remains unchanged in the presence of nitrogen chemical or physical?
Wiki User
∙ 6y ago
When something remains unchanged in the presence of nitrogen is it a physical change?
Wiki User
∙ 14y ago
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How do you test if nitrogen is present?
One common way to test for the presence of nitrogen is through the use of a chemical test called the Dumas method. This method involves heating a sample of the substance and capturing the released nitrogen gas to measure its volume. Another method is to use nitrogen-specific test strips that change color in the presence of nitrogen-containing compounds.
Is soft metal chemical property?
Softness is a physical property of metals, not a chemical one. The softness of a metal is determined by its crystal structure and the presence of defects or impurities in the metal's lattice structure, rather than its chemical composition.
Is flammability of a substance is physical or chemical change?
The flammability of a substance is a physical property, not a chemical change. It describes the substance's ability to ignite and burn in the presence of oxygen.
Is the flammability of ethanol a chemical property or chemical property?
The flammability of ethanol is a physical property, as it describes how the substance behaves in the presence of an external factor (fire). It is not an inherent characteristic of ethanol's chemical structure.
What is the chemical equation of the reaction of litmus paper to sodium chloride?
Litmus paper is a mixture of dyes that change color depending on the acidity or alkalinity of a solution. When exposed to sodium chloride, which is a neutral salt, litmus paper does not undergo a chemical reaction. It remains unchanged in the presence of sodium chloride.
The red color of rubies is due to the presence of chromium ions physical or chemical?
The red color of rubies is due to the presence of chromium ions in the crystal structure. Chromium ions replace aluminum ions in the crystal lattice of the mineral corundum, giving rubies their red hue. This is a chemical property of the gemstone.
Is burns in the presence of oxygen physical or chemical change?
The process of burning in the presence of oxygen is that of a chemical change. It is a chemical change and not a physical change because the prodects do not have the same properties as the reactants.
is Wood is FLAMMABLE Physical or Chemical?
Chemical: flammability requires a chemical reaction to occur in the presence of oxygen at a sufficiently high temperature.
When was A Physical Presence created?
A Physical Presence was created in 1985-03.
When was A Physical Presence - song - created?
A Physical Presence - song - was created in 1985.
Does gas always indicate a chemical change?
No, the presence of gas does not always indicate a chemical change. Gas can form due to physical processes such as evaporation or changes in temperature, without any chemical reactions taking place.
Is cooked food a chemical or physical change?
Cooking mainly is a chemical process in which we use acids like lime juice , alkalies and also some neutral solutions like water. The chemical reaction of these ingredients in presence of temperature gives food. Cooking can also be considered as a physical change since the physical features of the ingredients are changing.
Is hydrogen burning a physical or chemical change?
The burning of hydrogen is a chemical change because it involves the rearrangement of the atoms in the hydrogen molecule to form water. This process also releases energy in the form of heat and light.
How does nitrogen gas react with magnesium?
Nitrogen gas does not react with magnesium under normal conditions. Magnesium is relatively unreactive with nitrogen at room temperature due to the strong triple bond in N2. Heating magnesium to high temperatures in the presence of nitrogen gas can form magnesium nitride (Mg3N2).
What happens when hydrogen is combined with nitrogen?
When hydrogen is combined with nitrogen in the presence of a catalyst at high temperatures and pressures, it forms ammonia through a process called Haber process. Ammonia is an important precursor for the production of fertilizers and various chemical compounds.
Are tarnishing and rusting physical or chemical changes?
Tarnishing is a chemical change as it involves a reaction with the metal's surface, often due to exposure to air or moisture. Rusting is also a chemical change, specifically the oxidation of iron in the presence of oxygen and water. Both processes result in the formation of new compounds on the surface of the material.
What does the presence of nitrogen compound in water indicate?
vegetable nutrients in water
