Element 87 francium have the highest atomic size, so in short the closest element to francium have the high atomic size.
2K + Cl₂ ⇒ 2KCl
2Ca + O₂ ⇒ 2CaO
Answer:
C
Explanation:
Elements are found on the periodic table.
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The dye molecules move in a directed way from high to low concentration
Explanation:
The statement that best describes the motion of dye molecule in water is directed from a region of high to low concentration. The motion of the particles of the dye in water is described as diffusion:
- diffusion is the movement of molecules of a substance from one position to another.
- diffusion occurs from a region of high concentration to that of a low concentration.
- the dye in the water solution causes an increase in concentration of an area where it is dropped.
- this causes the particles to spread outward in the solution.
- a concentration gradient is set up between the two parts of the solution.
- this gradient facilitates the movement of the dye particles.
Learn more:
diffusion brainly.com/question/6873289
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