Which ion is the only negative ion present in an aqueous solution of an arrhenius base?
(1) hydride ion (3) hydronium ion
(2) hydrogen ion (4) hydroxide ion

__can be defined as which velocity changes

Why does earth rotate? because earth is formed from cold gases collapsing due to gravity because the matter in the nebula that formed earth was spinning because earth forms more than 99% of the mass of the solar system because the hydrogen atoms inside the nebula fused to form helium

How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !