hmmm, of course scale doesnt equal chord, otherwise there just wouldnt be any need to name it differently, would it
What do we call a scale - a number of notes with defined relationship between them. By relationship we mean the distance (measured in semitones) between notes of the scale. Say, we are considering major scale, the relationship for the major scale would be the following: Tone-Tone-SemiTone-Tone-Tone-Tone-SemiTone.
Thus we have C major scale:
C<-T->D<-T->E<-ST->F<-T->G<-T->A<-T->B<-ST->C
or, for ex., D major scale:
D-E-F#-G-A-B-C#-D
For different scales there are, naturally, different relationships...
Now, what regards chords:
A chord is three notes (usually, though it may be four or five notes or more) played together and the distance between the neighbouring notes of the chord should equals a third interval ( not in all cases tho...but for now it`ll be enough ). Now, look, there are two kinds of thirds - minor third = 3 semitones and major third = 4 semitones.
Thus we can construct different types of chords:
Major Third + Minor Chord = Major Chord
C <-4ST-> E <-3ST-> G = C Major chord.
Minor Third + Major Third = Minor Chord
C Eb G = C Minor Chord
Major Third + Major Third = Augmented Chord
Minor Third + Minor Third = Diminished Chord... These are basics.
You can also construct chords basing on the given scale, for ex.
Lets take C Major Scale:
C (1st degree of the scale) D(2nd)
E(3d) F(4th) G(5th) A(6th) B(7th)
1+3+5 = C E G = C Major Chord
2+4+6 = D F A = D Minor Chord
3+5+7 = E G B = E Minor Chord
4+6+1 = F A C = F Major Chord
5+7+2 = G B D = G Major Chord
6+1+3 = A C E = A Minor Chord
7+2+4 = B D F = B diminished chord
Well, Id better stop here, cause this is just the very top of the iceberg called music theory. Hope you got the gist tho, and for detailed explanation I`d recommend you get some book on music theory