A solution of the ionic salt NaCN would have ___ pH.

A. Acidic
B. Basic
C. Neutral ​

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

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