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Changes of state are considered physical changes because?
Physical changes are changes that don't change the structure of the individual molecules. Though heating a liquid to a gas will change how the molecules are bound to each other, the individual molecules will not change. This is contrasted from a chemical change, where the atoms of the molecules are rearranged.
Are changes of state chemical changes or physical changes Explain your answer.?
Changes of state, such as melting, freezing, boiling, and condensation, are physical changes. This is because they involve alterations in the physical form of a substance without changing its chemical composition. For example, when ice melts into water, the molecules remain H2O; only their arrangement and energy change. In contrast, chemical changes involve the formation of new substances through chemical reactions.
Are most chemical changes seen or not seen?
Most chemical changes happen between molecules, so they are unseen.
Does the chemical structure of water change when it changes states?
No, the chemical structure of water does not change when it changes states. Water (H₂O) remains the same molecule whether it is in solid (ice), liquid, or gaseous (steam) form. The differences in state are due to changes in temperature and pressure, which affect the arrangement and movement of the water molecules, but the molecular composition remains constant.
2. Explain physical changes in terms of the arrangement and motion of atoms and molecules.?
Physical changes involve alterations in the arrangement and motion of atoms and molecules without changing their chemical composition. For example, when ice melts into water, the rigid structure of the ice crystals breaks down, allowing the molecules to move more freely, which increases their kinetic energy. This transition reflects a change in the state of matter, where the molecules remain the same but are now arranged in a less organized, more fluid state. Overall, physical changes can be characterized by variations in energy and spacing between particles.
do oreos undertake any chemical changes?
Do Oreos undertake any chemical changes? Yes. How can Oreo be a chemical changes? Cooking involve chemical reactions, modifications of chemical molecules.
When water changes to ice the link up of atoms does or does not change?
The bonds between hydrogen and oxygen atoms of individual water molecules do not change when liquid water changes to ice. This is a physical change called freezing, and does not cause any chemical changes to occur. Only chemical changes can cause changes in chemical bonds.
Can molecular structure of sunlight change random?
Sunlight is not made of molecules and therefore has no "molecular structure."Sunlight can induce certain types of chemical changes in molecules that it hits; however, these are not "random" but fall into certain well-defined classes.
Changes of state are considered physical changes because?
Physical changes are changes that don't change the structure of the individual molecules. Though heating a liquid to a gas will change how the molecules are bound to each other, the individual molecules will not change. This is contrasted from a chemical change, where the atoms of the molecules are rearranged.
Are changes of state chemical changes or physical changes Explain your answer.?
Changes of state, such as melting, freezing, boiling, and condensation, are physical changes. This is because they involve alterations in the physical form of a substance without changing its chemical composition. For example, when ice melts into water, the molecules remain H2O; only their arrangement and energy change. In contrast, chemical changes involve the formation of new substances through chemical reactions.
How can Oreo be a chemical changes?
Cooking involve chemical reactions, modifications of chemical molecules.
Are most chemical changes seen or not seen?
Most chemical changes happen between molecules, so they are unseen.
How are machanical and chemical weathering different?
Mechanical weathering is a process which physically changes the appearance of a rock or structure. Chemical weathering is a process which changes the chemical composition of a rock or structure.
What is chemical physics?
Physical is when a rock or something changes its shape and not structure. Chemical is when a rock or something changes its entire format like a shape and structure.
Does the chemical structure of water change when it changes states?
No, the chemical structure of water does not change when it changes states. Water (H₂O) remains the same molecule whether it is in solid (ice), liquid, or gaseous (steam) form. The differences in state are due to changes in temperature and pressure, which affect the arrangement and movement of the water molecules, but the molecular composition remains constant.
2. Explain physical changes in terms of the arrangement and motion of atoms and molecules.?
Physical changes involve alterations in the arrangement and motion of atoms and molecules without changing their chemical composition. For example, when ice melts into water, the rigid structure of the ice crystals breaks down, allowing the molecules to move more freely, which increases their kinetic energy. This transition reflects a change in the state of matter, where the molecules remain the same but are now arranged in a less organized, more fluid state. Overall, physical changes can be characterized by variations in energy and spacing between particles.
Chemistry is primarily concerned with the composition of and changes in what?
Chemistry is primarily concerned with the composition of matter and the changes that occur in that matter. It focuses on understanding the structure of atoms, molecules, and how they interact to form new substances through chemical reactions.
