Vygotsky's theory of cognitive development best represents a stage theory of development.

The statement is True.

So as to pick up a comprehension of Vygotsky's speculations on subjective advancement, one must comprehend two of the fundamental standards of Vygotsky's work: the More Knowledgeable Other (MKO) and the Zone of Proximal Development (ZPD).  

Vygotsky's hypothesis is the possibility that the potential for subjective advancement relies on the "zone of proximal improvement" (ZPD): a dimension of improvement accomplished when kids take part in social conduct. Full advancement of the ZPD relies on full social association.

the answer is true

n+h→nh3

we must remember that nitrogen and hydrogen are both diatomic molecules in their standard gas form. this adjusts the equation to

n2+h2→nh3

now we need to adjust coefficients in order to balance the atoms on each side of the equation. currently we have 2 atoms of nitrogen and 2 atoms of hydrogen on the reactant side and 1 atom of nitrogen and 3 atoms of hydrogen on the product side.

we can balance the hydrogens by placing a coefficient of 2 in front of ammonia and a coefficient of 3 in front of the hydrogen.

n2+3h2→2nh3

this gives us 6 hydrogen on each side and coincidentally the nitrogens now equal 2 on each side.