Health Hazard Poem by Ima Ryma

A known chemical has been found
To cause excessive vomiting;
To even kill when too much downed;
To cause car brakes malfunctioning;
To be a lot in acid rain;
To be an erosion culprit;
To be in cancer of the brain;
To burn from heat it can emit.
This chemical is hazardous,
And maybe it ought to be banned.
What is this stuff that threatens us?
So we can better understand.

Dihydrogen monoxide - guess?
A fancy name for water - yes!