1)
On which Mizbe'ach did they put the blood?
1.
Malbim: A regular Chatas' blood is put on the four corners of the outer Mizbe'ach. This was like Par Helam Davar - its blood is put on the inner Mizbe'ach.
2)
What was the Kaparah for Yisrael?
1.
'Rashi': They served idolatry. The Torah does not command to bring rams and lambs to atone for idolatry! It was a Hora'as Sha'ah.
