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Is burning coal a chemical or physical reaction?
It is a chemical reaction. The coal (which is mostly carbon) reacts with oxygen to form carbon dioxide.
What is the balanced chemical equation for mentos and soda?
The reaction between Mentos (containing nucleation sites) and soda (containing carbon dioxide) is a physical reaction that causes the rapid release of carbon dioxide gas. This reaction is not a chemical reaction, so there is no balanced chemical equation for it.
What is the chemical equation for nitrogen dioxide dissolved in water?
The chemical equation for nitrogen dioxide dissolving in water is: NO2 (g) + H2O (l) -> HNO3 (aq) This reaction produces nitric acid (HNO3) when nitrogen dioxide (NO2) reacts with water (H2O).
When baking biscuits and other quick breads the baking powder reacts to release carbon dioxide bubbles the carbon dioxide bubble causes the dough to rise is this a physical or chemical change and why?
The reaction of baking powder to release carbon dioxide bubbles is a chemical change because it involves the formation of new substances (carbon dioxide gas) due to a chemical reaction. The carbon dioxide bubbles cause the dough to rise through physical expansion, but the underlying process of gas production is a chemical change.
Is carbonating water a physical or chemical change?
Carbonating water is a physical change because it involves dissolving carbon dioxide (gas) into the water to create carbonated water. No new substances are formed during the process, so it does not involve a chemical change.
Is carbon dioxide dissolving in water a chemical reaction?
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Is a heating process onto carbon dioxide a chemical reaction or a physical reaction?
Heating carbon dioxide is a physical reaction because it does not change the chemical makeup of the substance, only its physical state. The heat energy causes the carbon dioxide molecules to vibrate more rapidly, increasing their kinetic energy and leading to a phase change from solid to gas.
Which is a chemical reaction salt dissolving ice melting wood burning water boiling?
The chemical reaction among the options provided is wood burning. This process involves combustion, where wood reacts with oxygen to produce carbon dioxide, water, heat, and other byproducts, resulting in a chemical change. In contrast, salt dissolving, ice melting, and water boiling are physical changes, as they do not alter the chemical composition of the substances involved.
Is burning coal a chemical or physical reaction?
It is a chemical reaction. The coal (which is mostly carbon) reacts with oxygen to form carbon dioxide.
Is marble dissolves in acid rain physical or chemical change?
Marble dissolving in acid rain is a chemical change. The acid reacts with the calcium carbonate in the marble to form new substances, such as carbon dioxide and water. This chemical reaction alters the composition of the marble, leading to its dissolution.
What is the balanced chemical equation for mentos and soda?
The reaction between Mentos (containing nucleation sites) and soda (containing carbon dioxide) is a physical reaction that causes the rapid release of carbon dioxide gas. This reaction is not a chemical reaction, so there is no balanced chemical equation for it.
What is and example of a chemical reaction melting water burning a piece of wood dissolving salt in water or breaking a tree branch?
An example of a chemical reaction is burning a piece of wood. During this process, wood reacts with oxygen in the air to produce carbon dioxide, water vapor, and ash, resulting in a chemical change. In contrast, melting water, dissolving salt in water, and breaking a tree branch are physical changes, not chemical reactions, as they do not alter the chemical composition of the substances involved.
What is the chemical equation for nitrogen dioxide dissolved in water?
The chemical equation for nitrogen dioxide dissolving in water is: NO2 (g) + H2O (l) -> HNO3 (aq) This reaction produces nitric acid (HNO3) when nitrogen dioxide (NO2) reacts with water (H2O).
Is this a physical or chemical change when you pour vinegar into baking soda?
This is a chemical change because a chemical reaction occurs, creating a whole new substance (carbon dioxide).
Is roting wood a chemical or physical reaction?
The rotting of wood is a chemical reaction because it involves the breakdown of wood by microorganisms like fungi and bacteria, resulting in the release of various chemical compounds such as carbon dioxide and water.
Is the reaction between carbon dioxide and limewater physical?
Since it gives differed products, its a chemical change.
How does carbon dioxide change?
Carbon dioxide can change by converting into solid form (dry ice) at temperatures below -78.5°C or by dissolving in water to form carbonic acid. In the atmosphere, it can undergo photochemical reactions to form ozone and other compounds.
