im not sure , im having that problem too.. i have a test tmr and i need to study for that :O
Chemical Property
element
density
Physically blending substances forms a mixture. Chemically combining substances forms a new substance, such as a compound.
Forms easily with other substances.
These substances are called in the English terminology products.
Burning chemically alters a substance, creating different / new substances as a result. Melting, freezing, and evaporating are all different phases of the same substance.
A decomposition reaction breaks down complex substances to simpler substances. For example, AB forms A+B.
element
physical properties are those that can be seen or measured without changing a material. chemical properties tell how the substance forms new substances when it mixes with something else.
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Physically blending substances forms a mixture. Chemically combining substances forms a new substance, such as a compound.
physical properties are those that can be seen or measured without changing a material. chemical properties tell how the substance forms new substances when it mixes with something else.
Forms easily with other substances.
Physical properties of matter are those that can be seen or measured without changing the substance into something else. Chemical properties tell how the substance forms new substances when it reacts with something else.
Forms easily with other substances.
An embolus will form in the bloodstream when a foreign substance enters.
A compound is still a type of pure substance because of its number of particles. In order to be a pure substance, something needs one particle, and even though a compound is made of multiple elements, it still has a single particle.
Products are the new substances that form as a result of a chemical reaction.
a natural substance is something that is found again and again in many different forms eg. salt (also a reoccurring substance)