mariamehab mariamehab

11-11-2020
Chemistry

contestada

A balloon filled with helium floats in the air. What does this tell you about the density of helium?

Respuesta :

11-11-2020

Answer:

helium is denser than air

Answer Link

masetheface masetheface

11-11-2020

Answer:

For air, which has a molar mass of 29.0 g/mol, this gives a density of 1.18 g/l. Helium, which has a mass of 4.00 g/mol, has a density of 0.164 g/l.

Answer Link

Otras preguntas

The difference of the number of grades and the number of degrees of the same angle is 16. Find the number of degrees and grades of the angle.

Marcus is helping his little sister with her homework. She is learning about the theory of evolution. Marcus correctly states that the theory of evolution is an

An engine runs on a mixture of 0.1 quart of oil for every 3.5 quarts of gasoline. You make 3 quarts of the mixture. How much oil and how much gasoline do you us

Apply the order of operations to simplify each expression 4.24-8×2÷4= A0 B12 C16 D4

pa help po groupings po ito1) a mountain range block rainfall from reaching an area rain shadow making it dry desert biomeang answer po nito ay geosphere and at

Create a cartoon caption for George Washington. Make sure your quote summarizes the Revolutionary spirit.

The runner up earned $4 million less than half of the winners earnings.if their combined earnings totaled $35 million, how much did each person make?

About 250,000 people of a certain community live in the country. Of that number, 73,910 live in state A and state B. The number of people of that community in s

Given the following rug pattern, think about what the rug would look like if it was 10 times larger than figure #1. What would the perimeter and area of this ne

Suppose the interest rate is 8.0% APR with monthly compounding. What is the present value of an annuity that pays %100 every 6 months for 5 years?