PLEASE help me answer the blanks!! BRAINLIEST to the answers that help! the pH can be found based off of the number before. Thanks!!

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

What shape would a molecule with two bound groups and two lone pairs have?