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What is formed when burning hydrogen in air?
When burning hydrogen in air, water vapor is formed as a byproduct. The chemical reaction can be represented as: 2H2 + O2 -> 2H2O.
Is Mg burned in air chemical or physical?
Burning Mg in air is a chemical change. When magnesium reacts with oxygen in the air, it forms magnesium oxide. This is a chemical reaction that results in the formation of a new substance with different properties than the original magnesium.
Is the burning of gasoline a physical change or a chemical change?
The burning of gasoline is a chemical change because it involves a reaction with oxygen from the air to produce carbon dioxide, water vapor, and energy. This process cannot be easily reversed to recover the original gasoline molecules.
Is burning coal for a barbecue physical or chemical change?
Burning coal for a barbecue is a chemical change because the coal undergoes a chemical reaction with oxygen in the air to produce heat and light, along with byproducts like carbon dioxide and ash.
What is the name of a substance formed by burning hydrogen and ethanol in air?
Water vapor is the substance formed by burning hydrogen and ethanol in air.
When hydrogen burns in air the change is chemical Give two reasons to support this assertion?
When hydrogen burns in air with H2+O2= H20
What is formed when burning hydrogen in air?
When burning hydrogen in air, water vapor is formed as a byproduct. The chemical reaction can be represented as: 2H2 + O2 -> 2H2O.
Is magnesium burning in the air a chemical change?
Yes, magnesium burning in the air is a chemical change because it undergoes a chemical reaction with oxygen to form magnesium oxide. This reaction involves the rearrangement of atoms and the formation of new chemical bonds.
Is Mg burned in air chemical or physical?
Burning Mg in air is a chemical change. When magnesium reacts with oxygen in the air, it forms magnesium oxide. This is a chemical reaction that results in the formation of a new substance with different properties than the original magnesium.
Is the burning of gasoline a physical change or a chemical change?
The burning of gasoline is a chemical change because it involves a reaction with oxygen from the air to produce carbon dioxide, water vapor, and energy. This process cannot be easily reversed to recover the original gasoline molecules.
Is burning coal for a barbecue physical or chemical change?
Burning coal for a barbecue is a chemical change because the coal undergoes a chemical reaction with oxygen in the air to produce heat and light, along with byproducts like carbon dioxide and ash.
What is the name of a substance formed by burning hydrogen and ethanol in air?
Water vapor is the substance formed by burning hydrogen and ethanol in air.
Is burning magnesium a physical change?
This is a chemical change, like any other burning reaction: magnesium is turned into magnesium oxide by burning reaction with oxygen (from air). 2Mg + O2 --> 2MgO
Why burning candle is chemical change?
When a candle burns, the wax undergoes a chemical reaction with oxygen in the air to produce heat, light, carbon dioxide, and water vapor. This process involves breaking and forming chemical bonds, resulting in a new substance being created. Therefore, burning a candle is considered a chemical change.
What is the word equation for the reaction that takes place when hydrogen burns in the air?
When hydrogen burns in air, it combines with atmospheric oxygen to form water. Since hydrogen and oxygen are undergoing a chemical change to become chemically bonded together producing H2O the change is chemical in nature.
Why burning of magnesium in air is chemical change?
Burning of magnesium in air is a chemical change because it undergoes a chemical reaction with oxygen in the air to form magnesium oxide. This reaction involves the breaking and forming of chemical bonds, resulting in the formation of a new substance with different properties than the original magnesium metal.
What is burning candle it is physically Chang or chamically?
Burning a candle involves a chemical change, as the wax is being oxidized by the oxygen in the air to produce heat, light, carbon dioxide, and water vapor. This process is irreversible and results in the formation of new substances, which is characteristic of a chemical change.
