Why alkenes are more reactive than alkynes

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

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! )

Volume is a measurement of how fast particles of a substance are moving