Ah, you can show different widgets on different pages using a plugin – there’s a couple choices.
I’m personally using Jetpack for a few other things, so I enabled their Widget Visibility module – less plugins, and it works nice 🙂
Otherwise, I would go with something like this: https://wordpress.org/plugins/display-widgets/
I prefer Jetpack, as it’s updated more frequently: http://jetpack.me/support/widget-visibility/
Let me know if you have any questions 🙂