hallieerussell hallieerussell

10-10-2017
Chemistry

contestada

what percentage do the elements hydrogen and helium account for in the universe? A. 100% B. 99.9% C. 98% D.99.8%

Respuesta :

briano9120 briano9120

10-10-2017

c. 98% this worlds atmostphere is mostly nitrogen tho

Answer Link

cbc3001 cbc3001

10-10-2017

The percentage is 99.8% so D

Answer Link

Otras preguntas

A 14-year-old is hit in the mouth with a baseball. Two teeth are knocked out. Which of the following are appropriate transport solutions for the teeth

If the diameter of a circle is 6 inches, how long is the arc subtended by an angle measuring 70°?

I need help please and thank you! And explain please

The defenders of the sustainability approach toward corporate social responsibility (CSR) point out that _____.

can you help with 5 on the page and i included the table N

Which graph represents the equation y = x – 3?

Which two statements show how the narrative point of view develops the passage?

Which is the historical allusion?

g Suppose you read in the newspaper that a chemist in South America claims to have discovered a new element with an atomic number of 34. An extremely rare eleme

At a movie theater, the price of two adult tickets and for children ticket is $40 the price of a daughter gets into trouble to get to 64 what is the ticket pric