slatt29 slatt29

18-10-2020
Chemistry

contestada

An element has three isotopes: St-284 (34.60%), St-285 (21.20%), and St-288 (44.20%). What is its average atomic mass?

Respuesta :

27-10-2020

Answer: I believe that it’ll be 284.45

Explanation:

May have to double check but I’m pretty sure that’s correct sorry if it’s not

Answer Link

ACCESS MORE

Otras preguntas

Which kind of succession occurs after loggers clear-cut a forest? A. Primary succession. B. Secondary succession

listen to the audio, then answer the questions in full sentenceshttps://media.maestro.vhlcentral.com/audio/0018/00183575.mp31. ¿Qué es lo primero que se debe ha

What is the approximate time of death if the body temperature was 50°F?

A rectangle has a length of 8ft and a width of 4ft, what is the area of the rectangle in square feet?

you can buy a 12 ounce juice box for $0.72 or a 16 ounce juice box for $0.80 which Juicebox cost less per ounce? Edit: meant to put math sorry xD

You've taken out a load for $5,000 for five years. The interest you'll be paying over the five years is $2,250. What interest rate are you paying? i need someon

You received $50 as a birthday gift and chose to spend it on new wallpaper for your room. The opportunity cost of this decision is:

In circle D, angle ADC measures (7x + 2)°. Arc AC measures (8x - 8)º. What is the measure of angel ABC

Please hurry, will mark brainliest. Popular culture has created which uniform landscape as part of its society? •mountain ranges for hiking •terraced crops on

Which of the following did many immigrants come to the Unites States to escape? benevolent governments political oppression economic deprivation social stabi