I BELIEVE D IS THE CORRECT ANSWER BECAUSE IT IS INA . CLOSED SYSTEM.
The best and most correct answer among the choices provided by your question is the second choice or letter B.
<span>The statement "It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom." correctly describes the phosphate ion.
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A mixture is easily separated like a salad where you can pick things out and a compound you are usually unable to undo.
The law of conservation of energy states that no energy is created nor destroyed. When using a backup generator, the generator uses energy from another resource.
