Final answer:
FeSO4·7H2O, or Iron (II) sulfate heptahydrate, is a solid at room temperature, appearing as blue-green crystals.
Step-by-step explanation:
The physical state of FeSO4·7H2O, also known as Iron (II) sulfate heptahydrate, at room temperature is solid. It appears as blue-green crystals and it is often used in making inks, in water purification, and as a reducer for chromate within cement.
In essence, Iron (II) sulfate heptahydrate serves as a reminder of the diversity of forms and functions that chemicals can assume. Its solid-state presence, adorned with blue-green crystals, is a testament to the visual and structural intricacies that make chemistry a captivating science. Whether it graces the page with ink or purifies water, this compound is an enduring participant in the tapestry of human endeavors.
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