C, erosion. Erosion is the natural process of breaking down natural products through wind, or similar natural resources.
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The answer to this is Answer choice C: CaCl2
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The epidermis, the top layer
The dermis, middle layer
The hypodermis, bottom layer
There you go!
In order to balance an equation, we apply the principle of conservation of mass, which states that mass can neither be created nor destroyed. Therefore, the mass of an element before and after a reaction remains constant. Here, the balanced equation becomes:
4Al + 3O₂ → 2Al₂O₃
The coefficients are 4, 3 and 2.
