Sentence examples for nh4 from inspiring English sources

In the bottom diagram, in a game against Boris Gelfand of Israel, No. 9, Grischuk, No. 4, blundered with 31... Nh4, when 31... dc5 would have been better.

An eluant, ammonium (NH4), pushes the rare earths through the ion-exchange columns.

The general formula for minerals of the mica group is XY2 3Z4O10(OH, F 2 with X = K, Na, Ba, Ca, Cs, (H3O), (NH4); Y = Al, Mg, Fe2+, Li, Cr, Mn, V, Zn; and Z = Si, Al, Fe3+, Be, Ti.

The nitrate portion of the fertilizer (NO3) is already in the form plants can use; the ammonium portion (NH4) is slowly converted to usable nitrate by soil bacteria, and thus remains available to the plant for a longer time.

The nitrogen atoms go from a less stable, high-energy state (such as in NO3 or NH4), to a very stable, low-energy state (such as in N2), with the excess energy being released very rapidly, even explosively.

For example, when potassium nitrate (KNO3) is heated, a nitrite (a compound containing NO2−) is formed, and oxygen gas is evolved.2KNO3 + heat → 2KNO2 + O2 When heavy metal nitrates are heated, the metal oxide is produced, as in, for example,2Cu(NO3)2 + heat → 2CuO + 4NO2 + O2.Ammonium nitrate, (NH4 2NO3, produces nitrous oxide, N2O, and is especially dangerous to heat or detonate.

The nitrogen (N) bound into proteins in dead biomass is consumed by microorganisms and converted into ammonium ions (NH4+) that can be directly absorbed by plant roots (for example, lowland rice).

This nutrient enters the biosphere primarily as wet deposition to the soil surface (throughfall), where plants, microbial decomposers, or nitrifiers (microbes that convert ammonium [NH4+] to nitrate [NO3−]) compete for it.

In water, the lyonium and lyate ions are H3O+ and OH−; in ethanol, C2H5OH2+ and C2H5O−; and in liquid ammonia, NH4+ and NH2−.

The only basic solvent that has been investigated in any detail is liquid ammonia, which has the very low ion product [NH4+] [NH2−] = 10−33.

The reaction of dilute HNO3 with copper produces NO, whereas more reactive metals, such as zinc (Zn) and iron (Fe), react with dilute HNO3 to yield N2O. When extremely dilute HNO3 is used, either nitrogen gas (N2) or the ammonium ion (NH4+) may be formed.