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Matter with a definite composition is a pure substance, such as an element, molecule, molecular compound, or ionic compound.
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∙ 11y ago
Heaven Hopkins
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Solid
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Does the composition of a substance always stay the same?
The composition of pure substances, such as elements and compounds, are always the same. The composition of mixtures can vary.
What always stays the same in a compound?
a compound always has the same chemical formula
Matter that has the same composition and properties throughtout?
Substance
What is a substance with a constant composition?
No substance always has the same composition and properties, unless that substance is only considered in one of the various phases of matter. An element would be the logical choice, but many compounds and even solutions are the same no matter what (of course dependent on phase).
When matter undergoes a physical or chemical change the amount of mass changes or stays the same?
The amount of mass stays the same.
What is change in which the composition of matter stays the same?
physical change
What characteristics best describe what happen during a physical change?
The compsitions stays the same :0
A classification for matter that always has the same composition?
pure substance
Can matter be changed or moved?
Matter can not change. Its weight always stays the same NO MATTER WHAT, and it can be moved
What is a matter with a composition that is always the same?
Matter with a definite composition is a pure substance, such as an element, molecule, molecular compound, or ionic compound.
What is matter that always has exactly the same composition classified as?
I believe it is an element.
How does expansion and contraction of matter differ from a change in state of matter?
the matter always stays the same, expansion and contraction just means the matter is becoming more/less spread out from one another. A change in the state of matter is turning from solid-liquid-gas. The amount of matter always stays the same!
What stays the same in solids?
Chemical (formula) composition of the compound concerned.
True or false matter always stays the same?
False (E=mc^2 for example...)
Does the composition of a substance always stay the same?
The composition of pure substances, such as elements and compounds, are always the same. The composition of mixtures can vary.
What stays the same when a limestone cobble is subjected to extensive abrasion?
composition
What stays the same no matter where it is located?
"mass"
