Write ionic equations for any three of the following: 1. HNO3(aq) + NaOH(aq) → NaNO3(aq) + H2O(l)
2. HCl(aq) + KOH(aq) → KCl(aq) + H2O(l)
3. H2SO4(aq) + Mg(OH)2(aq) →MgSO4(aq) + 2H2O(l)

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units:

What three things determine the shape and size of a puddle when water is poured out onto a surface