Just going back to Arthur's comment about nitrous oxide. One of the most difficult chemical equations to 'balance' was in fact the preparation of Nitric Oxide(NO) (not Nitrous N2O) - sorry cant be bothered with subscripts.
It was the reaction of copper with 50% strength Nitric acid (You got different results with weaker or stronger acid) Here goes:-

3Cu + 8HNO3 = 3Cu(NO3)2 + 4H2O + 2NO

But you never actually saw the NO because it immediately oxidises further with oxygen in the air to give brown fumes of Nitrogen Dioxide (NO2), the latter very poisonous.

Years at KBGS e.g. 1958-1964 (optional) 58-64

Did this in 4a.

Also

Little Jonny's dead and gone
His face you'll see no more.
For what he thought was H20
Was H2SO4

Years at KBGS e.g. 1958-1964 (optional) 1952-60

Current location (optional) Lincoln

Joke!Element Name. WOMAN.
Symbol:WO
Atomic Weight:don`t even go there
Physical Properties:Generally round in form.Boils at nothing and may freeze at any time. Melts whenever treated properly.Very bitter if not used well.
Chemical Properties.Very active. Highly unstable.Possesses strong affiniy to gold,silver,platinum,and precious stones. Violent when left alone.Able to absorb great amounts of toxic food. Turns slightly green when placed next to a better specimen.
Usage:Highly ornamental. An extremely good catalyst for dispersion of wealth .Probably the most powerful income-reducing agent known.
Caution:Highly explosive in inexperienced hands.

Years at KBGS e.g. 1958-1964 (optional) 1959-66

Current location (optional) HAWORTH

JOKE
Element Name:MAN
Symbol: MAN
Atomic Weight:180+/50
Physical Properties:Solid at room temperature,but gets bent out of shape easily.Fairly dense and sometimes flaky.Difficult to find a pure sample.Due to rust,ageing samples and unable to conduct electricity as easily as young samples.
Chemical Properties: Attempts to bond with WO any chance it can get . Also tends to form strong bonds with it.Becomes explosive when mixed with Kid Element:Child- for prolonged period of time.
Neutralize by saturating with alcohol.
Usage:None known.Possibly good methane source. Good samples are able to produce large quantities on command.
Caution:In the absence of WO,this element rapidly decomposes and begins to smell.

Years at KBGS e.g. 1958-1964 (optional) 1959-66

Current location (optional) HAWORTH