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15,08 · 1023 atomi di rame corrispondono a 2,5 mol e 0,038 g di rame.
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vero
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3 mol di acido carbonico h2co3 corrispondono a 186 g.
vero
falso
in 46 g di na, sono contenute 3,6 · 1023 molecole di solfuro di sodio.
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Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Which statement is best described as a atom

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line