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2. Explain physical changes in terms of the arrangement and motion of atoms and molecules.?
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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.
Does higher mass cause liquids to freeze faster?
No.Because, When water freezes there is no change of mass due to conservation of mass in any physical and chemical changes.
How else are nuclear reactions unlike chemical reactions?
In nuclear reactions the atom itself changes while molecules and/or structural organisation of atoms do in chemical and physical changes.
Matter is a solid liquid or gas because of the arrangement and motion of its atoms or molecules. is that true or false?
this is true, and one way these molecules are affected is by changes in temperature. these molecules are also affected by pressure. you can literally press water back into ice; the same way you can lower the temperature until it freezes. oh and the space in between these molecules plays a big role as well.
Are all physical changes are reversible changes?
yes , all the physical changes are reversible changes.
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.
How is physical change and chemical change different?
A physical change is when some thing's shape or volume is changed. But a chemical change is a reaction between two or more objects to create something new and you can't get back what you originally started with.
Is evaporation of gasoline a example of physical change?
All changes of state are physical changes. Nothing happens to the molecules of gasoline when it evaporates, they just get further apart.
What does the physical state of an item depend on?
The physical state of an item depends on the arrangement and movement of its particles. The three main states of matter are solid, liquid, and gas. Solids have particles that are tightly packed and vibrate in place, liquids have particles that are close together but able to move freely, and gases have particles that are spread out and move rapidly in all directions. Changes in temperature and pressure can also affect the physical state of an item.
What are the physical changes of the small intestines?
enzymes, pancreation, amylase, changes starch into the disaccharidemaltose a sugar makes 2 glucose molecules
What are the physical changes that move water molecules from the lakes oceans and glaciers of the hydrosphere into the atmosphere?
Evaporation
Do atoms change during a physical change?
Nope. All that happens in chemical reactions is that atoms are rearranged into new molecules or compounds. You can't destroy atoms in a chemical reaction so whatever you begin with is what you end up with.
Is water turning to snow a chemical or physical change?
Changes of state are physical changes.
Why do pancakes go threw physical changes?
Well you see that it is both because if changes form and it bubbles so you can see that is has chemical and physical changes.
Does higher mass cause liquids to freeze faster?
No.Because, When water freezes there is no change of mass due to conservation of mass in any physical and chemical changes.
Which branch of physical science studies the properties of matter and changes in matter?
The branch of physical science studies the properties of matter and changes in matter is known as chemistry. This is a branch which is mainly concerned with atoms and molecules and how they interact.
What are the physical changes of the small intestine?
enzymes, pancreation, amylase, changes starch into the disaccharidemaltose a sugar makes 2 glucose molecules
