Where is the Oort cloud located? a. between the orbit of Mars and the orbit of Jupiter
b. in the different orbits between the sun and Neptune
c. beyond the Kuiper belt, at the farthest end of the solar system
d. all over the solar system and between the orbits of the planets

What is the smallest component or the most basic building block of any element ? a. an atom, b.a compound c.gas d.element

What element breaks down into yttrium-90?

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .