For the reaction: no(g) 1/2 o2(g) →→ no2(g) δδh°rxn is -114. 14 kj/mol. Calculate δδh°f of gaseous nitrogen monoxide, given that δδh°f of no2(g) is 33. 90 kj/mol.

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

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?