yatesalexis2 yatesalexis2

10-10-2017
Chemistry

contestada

what percentage do the elements hydrogen and helium account forr in the universe

Respuesta :

Rohan11 Rohan11

10-10-2017

they make up about 75% of the universe

Answer Link

Аноним Аноним

10-10-2017

the answer is about 75%
hope it helps!

Answer Link

Otras preguntas

can you create a movie review essay for me? not more than 250 words

Which verb or verb phrase is in the correct tense to complete the sentence? A)should be B)is being C)was D)will be

You roll a fair six-sided die twice. Find the probability of rolling a 2 the first time and a number greater than 4 the second time.

A weeping willow tree has hard stem from which branches and leaves grow.Its roots griw long.What function of the stem and roit do the sentences describe?

A yoyo with a mass of m = 150 g is released from rest as shown in the figure. The inner radius of the yoyo is r = 2.14 cm, and the outer radius is R = 4.00 cm,

Tape worms and Lice examples of blank that can cause diseases in humans

Match the following terms and definitions. 1. a technique that uses rewards to increase a learned behavior 2. a theory that behavior evolves to promote the grea

arrangement of element by atomic weights provided mendeleev with some elements that didn't fit the patterns such as argon. explain how this problem was eventual

The National Security Strategy states that "deterrence based only upon the threat of retaliation is less likely to work against leaders of rogue states...." Do

Cost of a CD: $17.50 Markup: 45%