What are group 6a elements likely to do when they form ions-gain electrons or lose them? what are group 6a elements likely to do when they form ions-gain electrons or lose them? lose electronsgain electrons?

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Heat of fusion= heat/mass  heat of fusion = 12.03kj/36 g= 0.3342 kj/g or 334.2 j/g