On the periodic table why is potassium k? on the periodic table, why is potassium represented as k?

A student heats a test tube containing a large amount of protien and biuret reagent. She notices a color change from violet to blue. Explain why.

What do you know about a solid's molecules

Want ate the five steps of the scientific method

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Will mark as brainliest Where do plants get most of the matter they need to grow new roots, stems, and leaves? Choose the two correct answers. A. water B. chloroplasts C. sunlight D. air E. starch

Dalton's atomic theory stated?

Give formulas for the following mercury compounds.

Pure water is neutral. What is the appropriate justification for this?

An acidic solution has a ph value of

Is a dependent variable a constant or a control