De or het knalgasvlam?

The correct Dutch article is:

de knalgasvlam

How to use knalgasvlam

the knalgasvlamde knalgasvlam
this knalgasvlamdeze knalgasvlam
that knalgasvlamdie knalgasvlam
our knalgasvlamonze knalgasvlam
your knalgasvlamjouw knalgasvlam
every knalgasvlamelke knalgasvlam
which knalgasvlam?welke knalgasvlam?
a big knalgasvlam / the big knalgasvlameen grote knalgasvlam, de grote knalgasvlam