Answer:
Four
Explanation:
P has five valence electrons. It can form bonds to three other atoms (like H) to form a triangular pyramidal molecule with a lone pair on the P atom.
If P atoms are to form bonds with each other, we can get a stable arrangement by putting each atom at the corner of a tetrahedron.
In a P₄ molecule, each atom still has three bonds and a lone pair.
The correct answer is d)all of above
examples for a are tyrosine for b lysine and for c isoleucine
Answer:
Because they convert the electrical voltage produced by increasing and then it goes into the power lines
Explanation:
<span>2Al + 3Br2 -------------> 2AlBr3
</span>3 g Al = 0.11 mol Al.
<span>6 g Br2 = 0.0375 mole bromine (it is diatomic). </span>
<span>moles of aluminium will take part in reaction = 0.0375 X (2/3) = 0.025. </span>
<span>Gram-mole of AlBr3 will be produced = 0.025 mole = 6.6682 g.
</span>moles of Al left = 0.11 - 0.025 = 0.086<span>
</span>
Answer:
Explanation:En la tabla periódica los elementos están ordenados de forma que aquellos con propiedades químicas semejantes, se encuentren situados cerca uno de otro. Los elementos se distribuyen en filas horizontales, llamadas períodos.
