<span>The characteristics of a wave are given certain names to describe them, and this helps scientists to accurately describe any given wave. The characteristic known as frequency describes the number of waves that pass a point, and it is measured in waves per second, or Hertz, which is given the symbol Hz, but can also be described using the inverse of the SI unit for second, s^-1.</span>
Answer:
la esperanza ayuda
Explanation:
Cuando se utiliza el mol deben especificarse las entidades elementales de que se trata. ... ¿Cuántas partículas (moléculas) de oxígeno (O2) hay en una mol de dicho gas? ... 20 g de Fe; 20 g de S; 20 g de oxígeno; 20 g de Ca; 20 g de CaCO3.
During the 1960s and 1970s, Cesar Chavez worked to unionize migrant farm workers by "(4) urging growers to reduce the workforce <span>through mechanization".</span>
Answer: 2 moles of water.
Explanation:
Given moles:
moles of oxygen = 2.5
moles of 
= 4.6
According to stoichiometry:
5 moles of oxygen reacts with = 1 mole of propane
Thus 2.5 moles of oxygen will react with = 
moles of oxygen
Thus propane is the limiting reagent as it limits the formation of products and oxygen is the excess reagent.
As 1 mole of propane produce = 4 moles of water
0.5 mole of propane will produce =
of water
Thus 2 moles of water are produced.
