What is a binary acid?

Which element would mostly likely have an electron affinity measuring closest to zero

Is a pencil falling to the floor anon contact force, a force, or a contact force

Imagine one batch of soup (batch “a”) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch “b”) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.