0
What else can I help you with?
How are mixtures from pure substances?
Mixtures are combinations of two or more pure substances that retain their individual properties and can be separated by physical means. Unlike pure substances, which have a uniform composition and distinct properties, mixtures can vary in composition and may exhibit different characteristics depending on the proportions of the components. Examples of mixtures include air, saltwater, and salad, where each component remains identifiable and does not chemically change.
What changes are separated through mixtures?
physical change
How do you separate mixtures and compounds?
You can break down a mixture by physical means
Have iron and sulfur undergone change in properties after mixing?
No. Making mixtures are physical changes and the chemical substances will not change.
Gas forms when two liquids are mixed is that a chemical change?
Physical reactions: freezing, boiling, evaporation, condensation etc. Chemical reactions: eg. heating, baking, decomposition etc. Physical mixtures - mixtures in which the substances are easy to separate and get back (done by physical reactions) eg. flour and rice grains - you can sieve them. Chemical mixtures - mixtures in which the substances are hard to separate and get back (done by chemical reactions) eg. cakes - u cant get the eggs and other stuff back.
What mixtures are chemical or physical change?
A chemical change occurs when new substances are formed with different properties, such as rusting of iron or baking a cake. A physical change involves a rearrangement of molecules without forming new substances, like dissolving sugar in water or melting ice.
What is differences between substances and mixture?
Substances are pure and have a specific chemical composition, while mixtures are a combination of two or more substances that can be separated physically. Substances have specific properties that do not change, while mixtures can have variable properties depending on the ratio of the components.
How are mixtures from pure substances?
Mixtures are combinations of two or more pure substances that retain their individual properties and can be separated by physical means. Unlike pure substances, which have a uniform composition and distinct properties, mixtures can vary in composition and may exhibit different characteristics depending on the proportions of the components. Examples of mixtures include air, saltwater, and salad, where each component remains identifiable and does not chemically change.
What kinds of changes in substances are always physical change?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
What is always a characteristic of a chemical change but not always a characteristic of a physical change?
When a chemical change takes place, the chemical structure of particles involved changes (i.e. one or more new substances are formed). In a physical change, the physical state of the particles involved changes (e.g. a solid melts and becomes a liquid). The chemical structure of the particles does not change, and no new substance is formed.
What changes are separated through mixtures?
physical change
Does a heterogenous mixture undergoe a physical or chemical change?
Heterogenous mixtures undergo physical change (I THINK)
What substances undergo physical change?
All substances have physical changes.
How do you separate mixtures and compounds?
You can break down a mixture by physical means
Have iron and sulfur undergone change in properties after mixing?
No. Making mixtures are physical changes and the chemical substances will not change.
Can all mixtures be changed back into the substances from which they are created?
Yes, because the substances can be separated apart physically.
Is a cracked window a physical change?
It is a physical change because it hasn't changed materials it just changed they way it look without adding or taking away substances. It will always be a window.
