Sound waves moves down a hall past an open doorway. waves of which wavelength would have the hardest time diffracting through the doorway in to the room A 5 cm

B 2 meter

C 100 meter

D all of them

b

explanation:

mitosis

hi my dude or dudette

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.