Any chemical reactions - a physical phenomenon. To discuss a chemical change please mention the two chemicals.
The thermal decomposition of baking powder is a chemical change.
Physical change, because you are not permanently changing the substance. Also you can change the two substances back to how they originally were
No. If you evaporate the water, the drink powder is left behind. No chemical change has taken place.
It is first a physical change, but depending on the ingredients being mixed it may be followed by chemical changes.
Yes.
No it is physical
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).
physical change
Mixing lemonade powder into water is a physical change. This is because the lemonade powder dissolves in the water, forming a homogeneous mixture without altering the chemical composition of the lemonade powder itself. No new substances are formed during this process, so it is considered a physical change.
Any chemical reactions - a physical phenomenon. To discuss a chemical change please mention the two chemicals.
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 baking soda with water is a physical change b/c you don't change the chemical structure mixing baking soda with vinegar is a chemical change b/c you change the chemical structure ================= It is definitely a chemical reaction resulting in a chemical change.
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.
Yes, mixing lemonade powder into water is a physical change because no new substances are formed. The lemonade powder dissolves in the water but can still be separated through physical means such as filtration or evaporation to obtain the original substances.
The thermal decomposition of baking powder is a chemical change.
No, dissolving powder into water is a physical change, not a chemical change. The powder molecules are still the same chemical compounds as they were before dissolving, just dispersed in the water molecules.