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What is the difference between diffusion and dissolve?
Diffusion is the spread of particles from an area of higher concentration to an area of lower concentration. Diffusion can occur in gas or liquid.Dissolving occurs when one substance, the solvent, supports the particles of another substance, the solute, to form a solution. The two processes are similar.Example:Sugar in the bottom of a cup of coffee will slowly diffuse into the bottom of the cup dissolving as it goes. When we stir the coffee we make the process faster and the dissolving is uniform without a higher concentration at the bottom of the cup.Perfume or petrol (gasoline) in a container in the corner of the room will slowly diffuse out and we can smell it even when we are not next to the container. Again the concentration is higher the closer we are to the container.
What is it called when steam is rising from coffee?
Steam rising from coffee
What happens if you put a fish in coffee?
If you were to put a fish in coffee then it would not be able to breath because of the lack of oxygen in the coffee. The gills of the fish would also brun off because of the heat of the coffee.
Is a cup of coffee heterogeneous or homogeneous?
A cup of coffee is a homogeneous mixture. No matter what one uses to sweeten or lighten it, the coffee is the same in every sip.
Is coffee with creme homogeneous heterogeneous or a pure substance?
Coffee with cream is a heterogeneous mixture. This is because it consists of two or more substances that are visibly distinguishable and not uniformly distributed throughout the mixture. The coffee and cream do not combine to form a single phase, making it a heterogeneous mixture.
Is dissolving sugar in coffee a physical or chemical change?
Physical
Is preparing a coffee a physical or chemical change?
The coffee remains coffee, and the sugar is simply dissolved. Thus, it is a physical change.
Is the dissolving of a sugar cube in a cup of coffee a chemical change?
yes dissolving sugar in a coffee is a physical change in a chemical change a new substance will be formed, and the component of this substance will be different from the parent substance. but in the case of sugar dissolving in coffee, mixture of sugar and coffee retain their respective properties. Moreover we can also separate the constituents from that mixture.and there is no new substance is formed
Is mixing coffee with hot water a physical or chemical change?
Mixing coffee with hot water is a physical change because the individual substances (coffee and water) retain their chemical identities and only the physical state of the coffee changes, dissolving in the water. No new substances are formed.
Dissolving a spoonful of sugar in tea or coffee is an example of an?
a physical change
Is dissolving milo into hot water a physical change?
The instant coffee and the water have not changed chemically or physically. It becomes a mixture, not a solution; the water is separate from the coffee powder. Therefore it is not a physical change.
Which of them is a reversible change coffee dissolving Water boinling Chocolate melting wood burning?
Coffee dissolving, water boiling and chocolate melting are reversible physical transformations whereas wood burning is a chemical combustive transformation.
Is brewing a coffee chemical or physical change?
physical. the water being added simply soaks through the coffee, so there's no chemical change.
Adding cream to coffee is a chemical or physical change?
It is a physical change.
Is filtering coffee a physical or chemical change?
filtering coffee is a physical change as no new products are formed after filtering and is reversible..
Would salt dissolved in coffee be a chemical or a physical property?
Neither. Well, it definitely wouldn't be a physical property because the outside features don't change. It WOULD be a chemical property if , for ex. bubbling water. The act of dissolving salt doesn't change anything.
If you add hot coffee to cold milk is that a chemical or physical change?
Mixing hot coffee with cold milk is a physical change because the molecules of both substances do not undergo a chemical reaction. The temperature change occurs due to heat transfer from the coffee to the milk, but the chemical composition of the coffee and milk remains the same.
