What am I growing?

I didn’t get to plant tomatoes this year. Instead I have some interesting things growing up in the tubs of last year’s dirt. Please help me identify. The first is an oak sprout I am sure. I have one bigger plant with heart-shaped serrated leaves, which I don’t know what it is and then a bunch of tiny sprouts. Are they the same thing or something else. Then one without serrated leaves and one with compound leaves.