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What else can I help you with?
Are atoms created or distroyed in a chemical?
i think that in nuclear reactions but in normal reaction not created and destroyedAdded:No, never created or destroyed. Only in nuclear reactions some atoms may change in other atoms (by decay or fusion) but still not (totally) distroyed.
When milk sours does it become a physical change?
No it is a chemical change because you change it back to normal.
Is chlorine gas liquefies at 35 degree celsius under normal pressure a chemical or a physical change?
The liquefaction of chlorine gas at 35 degrees Celsius under normal pressure is a physical change. It involves a change in the state of the substance (from gas to liquid) without altering its chemical composition.
is water freezing into ice a chemical change?
No , it is not a chemical change because chemical changes are irreversible i.e. original substance cannot be recovered but in this change we can easily melt the ice and back to its normal state.
Is a liquid at normal temperatures and pressures a physical or chemical change?
A liquid at normal temperatures and pressures is a physical change. When a substance changes from a solid to a liquid or from a gas to a liquid without any chemical reactions taking place, it is considered a physical change.
True or false atoms do not have a change?
Atoms can only change in the number of electrons in their 'shells'. That's actually the way they can react with each other. When reacting, their properties will change a lot.However, if the number of protons or neutrons changes that atom is not of the same element; this will only take place in NUCLEAR reactions, not in 'normal' chemical ones.
What are the different between the physical and chemical?
the difference is chemical can change it and it cant go back to normal. physical is when u can put it back.
Can atoms be subdivided?
Atoms are the smallest particles of matter. An atom can not be divided by normal chemical means, they can only be divided during nuclear fusion.
Is lighting a match from a matchbook a chemical change?
because it can't be changed back into it's normal form. the smell changes, which also tells you when a chemical change is taking place.
What happens when a clear substnace undergoes a chemical change?
It is no longer that same substance. A chemical changes the identity of the substance. Individual atoms cannot be broken down into smaller parts by normal physical or chemical change.
Is a physical change a change that you make something but you can change it back to its normal shape?
yes. a chemical change/reaction is irriversable, whereas a physical change/reaction is reversable.
Are fireworks a chemical change?
it is a chemical change because when they explode they are no longer able to return to normal form.
