<span>Contar los átomos de cada elemento en los reactivos y los productos.
Utilizar coeficientes; Colóquelas en frente de los compuestos según sea necesario.</span>
I would say none because thats the only one that makes any sence.
Answer:
Some chemical indicators perceived while a piece of paper is burning are:
Production of an Odor: there is a smell of burnt paper
Change in Temperature: combustion is a highly exothermic reaction , so the temperature increase
Change in Color: paper changes to ashes as the burning process occurs
Explanation:
xác định nội năng chuẩn ΔU của phản ứng tổng hợp amoniac
ở 400 0 C, biết :
N 2(k) + 3H 2(k) = 2NH 3(k) ΔH 0 T = - 109,0 kJ
the density of a black hole is 22.61 g/cm3 i think
