How many moles of hf are needed to react with 0.300 mol of na2sio3?

Na2SiO3(s) + 8 HF(aq) ___> H2SiF6(aq) + 2 NaF(aq) + 3 H2O(l)
as per the equation , one mole of Na2SiO3 requires 8 moles of HF.
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The answer is c fish

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.