Sunglow is a selectively bred amel, so I'm guessing your female snow had a sunglow as a parent. Technically it isn't a recessive gene, so she can't be heterozygous for sunglow. She's already an amel (+anery). The male is an amel het anery.
Snow x Amel het anery gives you 50% snows, 50% amels het snow (anery)
...most likely sunglow amels or nearly sunglow if the male is a sunglow and the mother comes from sunglow stock.
(side note: Some people use hypo in their sunglows to reduce saddle outline width...so the possibility exists that they are het or homo for hypo, but you're not really going to be able to tell in this cross anyway. Hypo snows can be quite colorful...coral snows...it would be a nice surprise I'm sure, but it's not a given. Good luck!)
