Can physical and chemical change occur together?

Solution : Yes, in some cases the physical and the chemical changes can occur together. One such example is the burning of candle. The wax present in the candle changes to liquid state. This means that the change is of physical nature.

Can a change be both physical and chemical give two examples?

Rusting of iron is an example of both physical and chemical change. Rusting of iron is an example of both physical and chemical change. जब कोई मोमबत्ती जलती है तो भौतिक और रासायनिक परिवर्तन दोनों होते हैं।

Which of the following has both physical and chemical change?

Passing of electric current is a chemical change, whereas, boiling of water is a physical change. However, cooking food is a physical as well as chemical change because the texture of food changes and new products are formed as well.

How are physical and chemical changes interrelated?

Chemists make a distinction between two different types of changes that they study—physical changes and chemical changes. Physical changes are changes that do not alter the identity of a substance. Chemical changes are changes that occur when one substance is turned into another substance.

What is the example of physical as well as chemical change?

The burning of wood is an example of a change that is both chemical and physical. When heated, the moisture in the wood turns to vapour, which is a physical change. Burning wood produces carbon dioxide (among other products) and results in a chemical change.

Is burning a candle a chemical change or physical change?

The process of burning (as opposed to evaporating) is a chemical reaction, a chemical change. The wax molecules are undergoing a chemical change; they are changing into different molecules by reacting with a substance in the air. What is this substance in the air that a candle needs to burn?

Why burning of wood is both physical and chemical change?

The burning of wood leads to the formation of new substances like ash(carbon), carbon dioxide gas, water vapour, heat and light. This change is irreversible and hence a chemical change. While cutting wood into smaller pieces is a physical change as there is no change in the original composition of wood.

Is cutting a lemon a physical change?

The processes of cutting and mixing are examples of physical changes.

Is boiling water a chemical change?

During boiling, water changes from liquid to gaseous state. Hence it is a kind of physical change.

Is lemon water a chemical change?

Mixing of sugar and lemon juice in water is a physical change. It is because of the fact that chemical composition and chemical properties of sugar and lemon juice, before and after mixing with water remain same. Moreover, no new chemical substance is formed because of which it is a physical change.

Can physical and chemical change occur simultaneously justify your answer by citing examples evidences?

The answer is yes. Both a physical change and a chemical change can happen at the same time. The next slides will show some examples. The examples also will show proof of a chemical change and a physical change happening at the same time.

Is baking a cake a physical change?

When you bake a cake, the ingredients go through a chemical change. A chemical change occurs when the molecules that compose two or more substances are rearranged to form a new substance! When you start baking, you have a mixture of ingredients. The flour, egg, sugar, etc.

Is burning paper a chemical change?

Physical changes involve changes in the form of a substance, but not its chemical composition. As we burn paper, it changes into ash i.e., changes its chemical composition. Hence, it is a chemical change not a physical one. Q.

Is frying an egg a chemical change?

Answer and Explanation: Frying an egg is a chemical reaction. It is an example of an endothermic reaction or one that takes in heat to make the reaction occur. An egg is made up of proteins and water, and the yolk also contains fat.

Is melting ice a chemical change?

The melting of ice is a physical change when it occurs naturally. But when you speed up the process by using a reactant, such as salt, it becomes a chemical reaction.

Is melting butter a chemical change?

When you first apply heat to a solid substance like butter, it melts into a liquid. This is a physical change. You can prove that this is a physical change because if you put the melted butter back in the fridge, it changes back to solid butter.

Is cutting of trees a physical change?

Even after cutting the tree it remains tree its does not change into other substance thats why it is a physical change. Cutting a tree is a physical change because it can be regained if we grow back the trees part which were removed off.

Is curdling of milk a chemical change?

Curdling of milk is a chemical change.

Is breaking glass a chemical change?

Breaking is a physical change because the shards are still glass, but it can’t be easily made whole again.

Is boiling an egg a chemical change?

For example, when peeling an egg you are engaging in a physical change. The boiling of the water itself is also a physical change. The egg becoming hard-boiled is a chemical change.

Is toasting bread a chemical change?

Whether you’re cooking meat, toasting bread or roasting coffee, you’re performing a particular chemical reaction – the Maillard reaction. This process, named for the French chemist who studied it, is the reaction between amino acids and reducing sugars in the presence of heat.

Is making jelly a chemical change?

The making of Jell-O therefore is a physical property change.

Is sour milk a physical or chemical change?

The souring of milk is classified as a chemical change because it results in the production of sour-tasting lactic acid.

Is frozen water a chemical change?

When liquid water (H2O) freezes into a solid state (ice), it appears changed; however, this change is only physical, as the composition of the constituent molecules is the same: 11.19% hydrogen and 88.81% oxygen by mass.

Is chopping wood a chemical change?

physical change means changes are reversable and no new substances must be formed . chemial changes are irreversable and new substances are formed . so here cutting would give rise to wood piece in which no new substance is formed so its physical change.