The number of in a mass spectrum indicates the number of isotopes of an element A. Peaks
B. Signals
C. Lighter Ions
D. Heavier Ions

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

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )

Write a balanced equation showing the formation of copper (ii) nitrite from its elements