The fact that the periodic table is set up such a fashion that certain patterns repeat is known as
a. electronegativity.
b. ionization pattern.
c. radioactivity.
d. periodicity.

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! )

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon

Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory