Answer:
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Explanation:
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<em>While sunlight is the energy source, the greatest force propelling the water cycle is gravity. Gravity is the force of attraction between two objects, and Earth's gravity pulls matter downward, toward its center. It pulls precipitation down from clouds and pulls water downhill. Gravity also moves air and ocean water.</em>
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The answer is <span>a. Rubidium
A cation is an ion that has a positive charge. The charge positive because it loses electrons. The radius of an atom is influenced by the electron because it is found at the outer layer of the atom. Since cation has less electron and anion get more electron, the radius of cation will be smaller than anion.
Rubidium is the biggest cation because it is located in the lowest row, thus having most electron count.</span>
Answer:
0.26 mol KNO₂
Explanation:
A buffer is defined as the mixture of a weak acid with its conjugate base or vice versa.
Nitrous acid (HNO₂) is a weak acid with pka of 3.3. Its conjugate base is NO₂⁻. KNO₂ in solution produce K⁺ + NO₂⁻. That means right answer is:
0.26 mol KNO₂.
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Answer: an arithmetical multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another.
Explanation:
