PjnL9itangeli PjnL9itangeli

14-09-2016
Chemistry

contestada

A sample that weighs 107.75 g is a mixture of 30% helium atoms and 70% krypton atoms. How many particles are present in the sample?

Respuesta :

xmelooody xmelooody

14-09-2016

A sample that weighs 107.75 g is a mixture of 30% helium atoms and 70% krypton atoms. How many particles are present in the sample? 3.59

Answer Link

Otras preguntas

What did Ernest Rutherford’s gold foil experiment demonstrate about an atom? Each atom is composed of electrons and positive material. The mass of the atom is e

The two main parts of a resumé are __________. a) assertions and evidence b) contact information and employment information c) education and employment inform

Which of these is a major issue involving present-day Africa

Then I lost my head entirely, mad with the power of exciting such rage. What type of figurative language is used in the excerpt?

I need help ASAP i'll give EXTRA points!!!!!!! 1. How did the hundred year’s war contribute to the decline of the mediaeval era? a) It encouraged kingdoms to

How did Egyptians use the natural resources they had?

What is the value of x, when 10(x + 2) = 5(x + 8)?

a machine paints 340 toy boats in 45 minutes.which expression equals the unit rate per hour.

What was a key difference between the northern European artists and the Italian artists?

(5 - 4) - 10 = 5 - (4 - 10) A.True B.False