The mixing of red paint and yellow paint should yield orange so your pigments must be undergoing a chemical change (the molecule is breaking down and reforming)
Yellow is a primary colour and cannot be created by mixing. Mixing orange and a yellow-green in the right quantities may give a dull amber colour, but that's as near as you'll get.
Mixing the colours yellow and blue produces green. Mixing green to green makes green, but the resulting green will be different from the two greens that entered the mix (assuming they were not identical).
No. Green is a secondary colour because you can create it by mixing other parts of the spectrum. The primary colours are Red, Yellow, and Blue. You can mix yellow and blue to make green.
It depends on the color you want to make...For example, red + blue = purple yellow + red = orange red + white = pink green + yellow = blue yellow + blue = green
Any combination of the tree primary colours will result in some form of brown. As purple is red & blue and you want to add yellow you will get some variation of brown.
Mixing red and yellow paint to make orange is a physical change because no new substances are formed. The individual red and yellow paint molecules are simply being physically combined to create a new color.
Yes, if two clear liquids are mixed and a yellow color forms, it is likely a chemical change. A color change is often an indicator of a chemical reaction taking place, indicating that new substances with different properties are being formed.
It is a chemical change because the sodium(Na) is a liquid that forms with a yellow gas, chlorine(Cl), which changes the physical state to a dickmuncher solid, but ultimately they reacted with each other chemically to form salt (NaCl). It does change the physical state, but it is more of a chemical reaction.
The transformation of sulfur from a bright yellow solid to a different colored solid would be considered a physical change because no new substances are formed. The change in color is due to the rearrangement of sulfur atoms, not a chemical reaction.
It is a physical change. I goes from white, to yellow, back to white.
It is a chemical change. The bleach reacts with the pigments in the hair, causing a chemical reaction that breaks down the natural color and can result in a yellowish tint.
A chemical change has taken place. The exposure to sunlight causes the paper to undergo a chemical reaction, breaking down the molecules in the paper and causing the color change to occur.
Physical (I'm pretty sure). If there is no change in the formula/chemical makeup/etc. then the change is purely physical. If the newspaper ceased to be a newspaper and became something else, then it would be chemical.
The yellow color of a banana is a physical property, as it can be observed without changing the chemical composition of the banana.
This represents a chemical change, as the formation of a cloudy and yellow solution suggests the formation of a new substance with different properties from the original solutions.
Its colour, its melting point, its boiling point, whether it is magnetic or not, whether it is an electrical conductor or not and its atomic mass are all physical properties.
It is a chemical change because the sodium(Na) is a liquid that forms with a yellow gas, chlorine(Cl), which changes the physical state to a dickmuncher solid, but ultimately they reacted with each other chemically to form salt (NaCl). It does change the physical state, but it is more of a chemical reaction.