Answer:
the answer is B, pH scale
Answer:
chalk bubbles with vinegar
Answer:
Acid neutralizes base to form salt and water while white colour neutralizes black colour to form grey colour.
Explanation:
Neutralization is simply the process whereby an acid and a base are mixed to produce salt and water. Now, this reaction also involves the mixing of the hydrogen ions of the acid and hydroxide ions of the base to form the salt and water. It is similar to mixing 2 paints to form another colour in that in the neutralization reaction 2 compounds are mixed to neutralize each other to form another compound while in mixing black and white to form grey the two colors are mixed together and thereby neutralized to form another colour which is grey.
In photosystem II<span>, light strikes on a photosynthetic pigment. Energy is absorbed, then energy bounces to the chlorophyll molecule in the </span>reaction center<span>, which releases two energized </span>electrons, the electrons<span> are </span>replaced<span> by two </span>electrons stripped from a water molecule, forming oxygen gas (
) and two hydrogen ions (
)
The answer is D. Main sequence stars
