If you are talking about adding a pack of powder to some liquid then this is a physical change. The powder is being dissolved in the liquid and therefore undergoing a change of state, this is however reversible by evaporating the liquid of to leave you with a solid mass (the original powder just not broken up)
no, its not chemical change, it's physical change
for sure
Mixing lemonade powder with water is a physical process.
no anonymous
i think it is
No, it does not.
Mixing is a physical process.
yes
Chemical I think
Powdery is an adjective which not require any change!You can have a physical change where a large lump of some substance is ground into powder. Or you can have a chemical change (eg magnesium burning) which leaves a powdery residue.
If a solid is crushed to a powder, it is a 'Physical' change. This is because the chemical compounds in the solid isn't changing, just the texture and shape of it.
Dehydration of hydrated salts is usually considered to be a physical change.
Take this as a note. A mixture is always a physical change, as you can simply evaporate the water and have Urea again. Chemical change always involves the changing of reaction properties amongst its reactants.
Mixing lemonade powder into water is a chemical change. This is because the powder changes the water molecules and can not be taken out.
physical change
No it is physical
making lemonade is a physical change i believe
Making lemonade is a physical change because the powder and water do not combine chemically. It becomes an aqueous mixture.
Among salt, sugar, water and lemonade, only lemonade is a mixture.
1. Any chemical reactions - a physical phenomenon.2. Mixing when chemical reactions are implicated - chemical change (depending on the type of the liquid and powder).
To call it an physical or chemical change, we first need to describe both of them briefly. A physical change is the one which does not change the chemical properties of a substance. A chemical change is the one which changes the chemical properties of a substance. Whether they can be recovered or not is not of importance here. So if you mean to dissolve some powder in hot water such that it does not make any reaction with water, then its a physical change. (Mixing flour or salt or sugar powder are examples) However if you put some powder in hot water which creates a reaction and the molecules of that powder are no longer the same, then it would be a chemical change. (Adding tiny sodium or potassium pieces to water are examples)
Mixing flour and baking soda is a physical change; the process of mixing them together does not in itself cause them to change into any other chemical. However, when the pastry is baked, then there will be chemical changes.
Any chemical reactions - a physical phenomenon. To discuss a chemical change please mention the two chemicals.
Yes.
Backing powder can be dissolved in lemonade.