Answer:
A) 21.0 g of N2
Explanation:
From the periodic table:
atomic mass of nitrogen = 14 grams
This means that:
molar mass of N2 = 2(14) = 28 grams/mole
Now, from the given balanced equation, 2 moles of NaN3 produce 3 moles of N2. We can use cross multiplication to know the number of moles of N2 produced from 0.5 moles of NaN3 as follows:
2 moles NaN3 ..............> 3 moles N2
0.5 moles NaN3 ...........> ?? moles N2
number of moles of N2 = (0.5*3) / 2 = 0.75 moles
Now, we will get the mass of 0.75 moles as follows:
number of moles = mass / molar mass
mass = number of moles * molar mass
mass = 0.75 * 28
mass = 21 grams
Hope this helps :)
The shape has 4 faces . i hope this helps
Answer:
130 total people
Step-by-step explanation:
This is because the ratio of woman to men is 8 to 5, and there are 50 men, so you do 50 divided by 5 to get you 10, then multiply 10 by 8 which gets you 80 women, 50+80=130. :)
45000 is the answer because 1800 x 25 = 45000
Respuesta:
Pablo se cubrirá de agua si se para en la piscina
Explicación paso a paso:
El nivel del agua en la piscina = 250cm.
Altura de Pablo = 1520 mm
Para saber si pablo podría pararse en la piscina sin estar cubierto de agua, necesitamos determinar la altura de Pablo en centímetros.
Convertir la altura de Pablo de milímetro a centímetro;
1 mm hasta 0,1 cm
1520 mm = (1520 * 0,1) = 152 cm
Por lo tanto, pablo mide 152 cm.
Esto significa que la altura del agua en la piscina es mayor que la altura de Pablo y esto lo cubrirá el agua si se para en la piscina.
