Answer:
Superscript 6 Subscript 2 Baseline Upper H e right arrow Superscript 6 Subscript 3 Baseline Upper L i + Superscript 0 Subscript negative 1 Baseline e
Explanation:
Helium decays by beta emission, in beta emission, the mass number of the parent and daughter nuclei are the same but the atomic number of the daughter nucleus increases by one hence it is found one place to the right of its parent in the periodic table.
Having said this, the decay of Helium to lithium may be written as follows;
6/2He -> 6/3Li + 0/-1e
0.01375 moles of nitric acid (HNO₃) which is the limiting reactant
Explanation:
We have the following chemical reaction:
NaOH + HNO₃ → NaNO₃ + H₂O
Now to determine the number of moles of each reactant we use the following formula:
molar concentration = number of moles / volume (L)
number of moles = molar concentration × volume (L)
number of moles of NaOH = 0.5 × 0.250 = 0.125 moles
number of moles of HNO₃ = 0.55 × 0.025 = 0.01375 moles
From the chemical reaction we see that 1 mole of NaOH reacts with 1 mole of HNO₃, so 0.125 moles of NaOH will react with 0.125 moles of HNO₃ but we only have 0.01375 moles of HNO₃ available, so the limiting reactant is HNO₃.
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Answer:A scientist can do a power point presentation to best communicate data to other scientists.
Explanation:
