Answer:
HYPOTHESIS, VARIABLES, AND CONTROL GROUP
Explanation:
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Answer:
2
Explanation:
The change of state occurs at a constant temperture and pressure. In the grahp we can see while the time passes, the temperature doesn't change.
The rect number 4 correspond to a liquid-gas phase
Oxidation is when the overall charge (or oxidation number) increases. The only way to increase an oxidation number is to lose an electron, thereby making the negative charges less. The correct answer is C.
I think it is d. Because the process is not reversible and it a chemical process
