Its okay my friend. you dont need to over stress it.
Answer:First calculate the moles of selenium by multiplying the mass x molar mass 90.2 × 78.96 = 7122.2 moles. Number of moles multiplied by ...
Explanation:
Answer:
the shape of a piece of matter can change
Answer:
6
Explanation:
2A is a molecule Argon bond. so, it's 1 + 2+ 3
Grass is biotic- living.
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