laurenthetutor laurenthetutor

15-12-2020
Chemistry

contestada

pls help question 2 ill attach a picture

pls help question 2 ill attach a picture class=

Respuesta :

arslanamir186 arslanamir186

15-12-2020

Answer:

X 154

Check solution in explanation

Explanation:

Average atomic mass = ( mass 1× abudance) + ( mass 2× abudance)+ ( mass 3× abudance) / 100

(149×13.8)+(152×44.9) +(154×41.3)/100

2056.2 + 6824.8 + 6360.2/100

=152.412

Answer Link

Otras preguntas

Write an equation of the line passing through the points (4,10) and (-1,-15)

Is 285 as a perfect square

my teacher gives me 3$ and buy a sweetie for me she gives me 2 add on and tell me how much chewing gum I ate?

Find the equation the line with the given information below: X-intercept = (-4, 0) y-intercept = (0, -8)

Why has globalization led to some job loss in the United States? A. Labor costs are lower in other countries. B. Foreign investment has shifted to developing co

Refer to the passage. "Beder [Delhi] is the chief town of Mahomedan Hindostan [Muslim-controlled India]; the city is large, and contains a great many people. Th

What Greek mathematician wrote the most definitive text on geometry

Help wit history please

Arianna and Blair are working on a problem together: Solve x/3 + 8 = -2. Blair thinks the first step is to multiply by 3. Arianna explains that this, not the mo

what does the idea of "natural rights" mean?