Is a rusty nail a chemical or physical change? - Answers
Dec 17, 2024 · Melting a nail is a physical change because only the state of matter is being altered, from solid to liquid, without changing the chemical composition of the nail.
What are the Physical and chemical changes as a car ages?
May 25, 2024 · There are many different chemical changes that could happen in a car. The conversion of fuel for example is a chemical change.
What is a chemical change for a pencil? - Answers
Mar 2, 2025 · What else can I help you with? Is breaking pencil a chemical change? Sharpening a pencil is a physical change, because there is no change to the chemical makeup of the pencil when …
What is the chemical change when sugar is heated? - Answers
May 29, 2024 · Charring of sugar is a chemical change because it involves the chemical decomposition of the sugar molecules due to the application of heat, leading to the formation of new substances like …
When you heat up water and it changes to steam is it a ... - Answers
May 29, 2024 · The change of water to steam is a physical change, not a chemical change. In this case, the water molecules are simply changing phase from a liquid to a gas, but the chemical composition …
Is water evaporating from a puddle a chemical change?
Jun 4, 2024 · The process of a puddle freezing into ice is a physical change. This is because the molecules in the water are rearranging to form a solid state (ice) without any change in their chemical …
Is the spoiling of milk a chemical or physical change? - Answers
May 30, 2024 · A chemical change in milk occurs when it sours, involving the breakdown of lactose by bacteria to form lactic acid, altering its chemical composition.
Is breaking pencil a chemical change? - Answers
Aug 9, 2023 · Sharpening a pencil is a physical change, because there is no change to the chemical makeup of the pencil when sharpening it. It is simply chunks of wood being sliced off to reveal more …
Is burning toast in the toaster physical or chemical? - Answers
Jun 6, 2024 · It is a chemical process. Burning toast would be a chemical change. The bread would be changed into carbon and the reaction can not be reversed. You can use a toaster oven to toast.
If milk and vinegar is mixed is it a physical or chemical change?
Feb 19, 2025 · Two chemical are mixed together and a gas is produce is it chemical or physical? The production of a gas when two chemicals are mixed is a chemical change.