Web47)If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) _____. 47) Answer: compound 48)Predict the formula of the ionic compound that forms from sulfite and magnesium. 48) Answer: MgSO3 Web17 mei 2024 · Is tarnishing of silver a chemical change or physical change? When silver objects are exposed to pollutants normally found in air, they gradually become dull and discolored. This darkening of silver is called tarnishing. It occurs when silver undergoes a chemical reaction, classified as an oxidation reaction, with sulfur-containing substances.
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Web30 aug. 2024 · A physical change is a change in appearance only. The matter is still the same after the change takes place. Examples of physical change include, cutting paper, melting butter, dissolving salt in water, and breaking glass. A chemical change occurs … Web24 apr. 2024 · A penny doesn’t technically “rust.” The copper plating corrodes, resulting in green surface tarnish. The corrosion is from oxidation -- a chemical reaction between the metal and oxygen, water and carbon dioxide in the air. Rust is the term used to describe this process when it happens to iron instead of other metals. days inn west rapid city
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Web15 apr. 2024 · Assembling, measuring, and preparing the ingredients for mixing could result in numerous physical changes. Melting solids into liquids, boiling liquids giving off gases, preparing solutions of solids, and color changes are a few of them. The baking part is where slow, uniform heat is applied to your ingredient mix. Web2 jun. 2024 · Tarnishing is properly considered a chemical change. Is salt and vinegar a physical or chemical change? The combination of salt and vinegar creates sodium … Web12 mrt. 2024 · Tarnishing is properly considered a chemical change. Is a penny turning green a physical or chemical change? Yes, pennies turning green is a representation … gbp 365 to usd