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Sometimes, they can not get back to the way they were. DO NOT MIX HOUSEHOLD CLEANING CHEMICALS. If you mix them you can make an explosion that can kill you or a gas that is deadly, that will not always happen. Chemical changes can be normal if you mean to do it (BE CAREFUL IF YOU DO). They may not be normal if you spill them. Sometimes a liquid turns into a solid or a solid turn in to a gas.
What else can I help you with?
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.
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.
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.
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. This is because the change in state from a gas to a liquid does not alter the chemical composition of the substance, only its physical state.
How is nuclear change differ from normal chemical change?
Nuclear change usually (but not always) changes the element of an atom itself; at the very least, it changes the isotope of the atom, altering its radiological properties (such as its half life). A chemical change means a change to a molecule in which the atom is bound.
Is making gravy a physical or chemical change?
Because making gravy merely involves dissolving the powder in water, it is classified as a physical change. This is due to the fact that neither the powder, nor the water are undergoing and change in chemical properties.
