No that is a physical change
All are examples of chemical changes
The process of making custard involves both physical and chemical changes. physical changes include mixing ingredients together and heating them, while chemical changes occur when the proteins in the eggs denature and coagulate to form the custard's texture.
The browning of an apple after being cut is an example of a chemical change called oxidation. When the apple's flesh is exposed to air, enzymes in the apple react with oxygen causing a chemical reaction that changes the color of the apple.
A chemical change is a change involving making and breaking chemical bonds to form new chemicals. For example when wood burns the carbon and hydrogen in the cellulose react with the oxygen in the air, forming carbon dioxide and water. A physical change is one that the chemical changes states and no new chemicals are formed, like melting ice or dissolving salt in water.
No it is not, as the ice will still retain its chemical properties. This is an example of a physical change. Remember that the indicators of a chemical change are a change in colour, a change in odour, a change in temperature, the formation of a precipitate, or a gas being given off.
No, melting ice is a chemical change where as carving ice is physical.... Another example is chewing food is physical where as enzymes in your saliva breaking down the food is chemical.
All are examples of chemical changes
hammering a nail is a physical change, this is because the nail changes shape from being long to being short and in a board for example.
The process of making custard involves both physical and chemical changes. physical changes include mixing ingredients together and heating them, while chemical changes occur when the proteins in the eggs denature and coagulate to form the custard's texture.
The browning of an apple after being cut is an example of a chemical change called oxidation. When the apple's flesh is exposed to air, enzymes in the apple react with oxygen causing a chemical reaction that changes the color of the apple.
Exploding fireworks are an example of a chemical change. The chemical compounds within the fireworks undergo a chemical reaction when ignited, resulting in a new substance being formed that releases energy in the form of heat and light.
ewan
Evidence of a chemical reaction includes color change, formation of precipitate, evolution of gas, and changes in temperature. These changes can indicate that new substances are being formed through the rearrangement of atoms.
Yes.. but it depends on the energy that is changing or being changed
no, its physical change :)
A chemical change is a change involving making and breaking chemical bonds to form new chemicals. For example when wood burns the carbon and hydrogen in the cellulose react with the oxygen in the air, forming carbon dioxide and water. A physical change is one that the chemical changes states and no new chemicals are formed, like melting ice or dissolving salt in water.
It is a physical change, because it does not change in substance. A penny, whether in its normal state or flattened, is still a penny. Similarly, if you drop a watermelon and it breaks apart, that is also considered to be a physical change because it is still a watermelon. Things are considered to be chemical changes when the substance changes into something new, and is commonly classified as irreversible. When an object rusts, it is considered to be a chemical change. Chemical changes are associated with a temperature change, or a color change or bubbling or something of the sort. Physical changes deal with physical changes in state, for example, ice melting, or in the example you provided, a penny being flattened.