The reaction K(s) + 2H2O(l) → 2KOH(aq) + H2(g) is a decomposition reaction.

True
False

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

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explanation:

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;