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Answer:
35
Explanation:
The number of protons in bromine-80 is 35, it is the same with the atomic number.
Answer:
[H⁺] = 1.0 x 10⁻¹² M.
Explanation:
<em>∵ [H⁺][OH⁻] = 10⁻¹⁴.
</em>
[OH⁻] = 1 x 10⁻² mol/L.
∴ [H⁺] = 10⁻¹⁴/[OH⁻] = (10⁻¹⁴)/(1 x 10⁻² mol/L) = 1.0 x 10⁻¹² M.
∵ pH = - log[H⁺] = - log(1.0 x 10⁻¹² M) = 12.0.
∴ The solution is basic, since pH id higher than 7 and also the [OH⁻] > [H⁺].
Answer: Cotyledons are the first leaves to emerge from the soil when a plant germinates. Because they are part of the seed's embryo, they also are known as seed leaves, and provide nutrients to the seedling until its true leaves unfurl and begin the process of photosynthesis.
Explanation:
