What Has the CRC Done with Q/A 80?

Heidelberg Catechism Lord's Day 30 Q. 80 What difference is there between the Lord's Supper and the popish mass? A. The Lord's Supper testifies to us that we have a full pardon of all sin by the only sacrifice of Jesus Christ, which He Himself has once accomplished on the cross; and that we by the Holy Ghost are ingrafted into Christ, who according to His human nature is now not on earth, but in heaven at the right hand of God His Father, and will there be worshiped by us -- but the mass...