Answer:
A meso compound is a non-optically active member of a set of stereoisomers, at least two of which are optically active.
The answer is Dark Energy. It<span> counters gravitational pull and causes empty space to expand at an accelerated rate.</span>
Answer:
A
Explanation:
Radon is an alpha emitter. It emits alpha particles giving off gamma ray. It is a radioactive byproduct of radium-222.
Radon also penetrates the skin. This is because radon is a gas and chemically unreactive with most materials, it moves easily through very small spaces, such as those between particles of soil and rock, to the soil surface
Option B is wrong. It is produced during radioactive decay of radium and not uranium.
Option C is wrong. Radon is not a metallic element.
Option D is wrong also. It is not produced from photochemical smog
Option E is wrong. This is an extension of option B. Uranium is generally used in nuclear plant operations and not radium
As the solution turns yellow when re cabbage juice indicator is added it implies that its base solution so the color of the solution when hibiscus flower juice added is dark grey to green.
when hibiscus indicator added Anywhere from dark pink to pale pink usually indicates an acid, while dark gray to green colors usually indicate a base.
Dark blue should be the color of red cabbage indicator. The cabbage indicator's color will shift to red or pink if the solution is an acid, and to green or yellow if the solution is a base. In the event that the test solution is neutral, it will stay purple or blue
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