first of all your sentence is incorect! it would be "What is "a" compound subject"
anyways a compound subject is when you have two subjects like in this sentence-
Dave and Bill went to the movies together to see 2012.
Dave and Bill would be the compound subject.
is*
No, "Wouldn't " is a contraction.
Carbon Dioxide.
The molecule is Methane.It ia an alkane
Yes it ia a inorganic compound. Because of it doesn't contain C.
A subject can be compound or singular. If it is compound, then both are the subject. Example:John and Jeff rode their bikes.
It stands for ammonia.It ia s basic compound
yes. borax crystal ia ionic compound.
compound subject
A compound subject is a sentance with two or more subjects.
Tony and I went to the movies. Tony and I is the compound subject.
a compound subject is two or more subjects joined by a conjuction