1. acid
having no preference or tendency
to move one way or the other, neither
acid nor base
2. base
a charged atom or group of atoms
3. indicator
a substance used to show a
change in chemical conditions
a compound that yields hydronium
4. ion
ions in water
a white powder used in testing
5. litmus
acids and bases
a blue coloring matter obtained
6. neutral
from certain plants
a chemical species that releases
7. phenolphthalein
hydroxide ions

electromagnetic waves travel through space with vacuums. give me brainliest if right.

im guessing the west of station b

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.