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tamaranim1 [39]
3 years ago
6

A gate made of painted iron is beginning to rest in areas where the paint has worn away why is the formation of rust considered

a chemical change?
Chemistry
1 answer:
Pavel [41]3 years ago
3 0

Answer:

because it is two substances reacting together to create a new substance

Explanation:

when iron rusts, iron molecules react with the oxygen molecules creating iron oxide aka rust.

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Can a electron be found in an exact spot within a atom
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Electrons are located in an electron cloud, which is the area surrounding the nucleus of the atom. There is usually a higher probability of finding an electron closer to to the nucleus of an atom.

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Please help quick<br> Alkali means ___.
sveticcg [70]

Answer:

Metal

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In chemistry, an alkali is a basic, ionic salt of an alkali metal or alkaline earth metal chemical element. An alkali also can be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0.

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The main factor which effects the speed of a sound wave is the ____
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3 years ago
ILL MARK BRAINLIEST :)
DanielleElmas [232]

Explanation:

According to the law of conservation of mass, mass can neither be created nor destroyed but it can simply be transformed from one form to another.

For example, Na^{+} + Cl^{-} \rightarrow NaCl

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= 58.5 g/mol

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As mass reacted is equal to the amount of mass formed. This shows that mass is conserved.

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What is silicon used for?​
skelet666 [1.2K]

Answer:

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Explanation:

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