Helium Topic Questions

Google - I'm wanting to start selling helium balloon at local events in the uk do I need a permit?

Posted 3+ months ago | 0 answers | | Open

Related topics: balloon, event, local, selling, google, uk, helium

Which of the following elements exist as a covalent?

... network? Helium Nitrogen silicon Sulfur i do not understand why silicon will be the covalent network so could you pls tell me why

Posted 3+ months ago | 0 answers | | Open

Related topics: network, element, silicon, elements, helium, chemistry

Will a helium balloon pop if I write on it with a permanent marker?

i dont dare to write because i scared it might pop-ed since permanent marker has some ingredients of toxic?? Acid??

Posted 3+ months ago | 1 answers | | Open

Related topics: balloon, write, scared, acid, toxic, marker, ingredients, helium

Sun consists of helium and hydrogen gases only, its density is much higher, why?

Though sun consists of helium and hydrogen gases only, its density is much higher than any material on the earth. why is it so?

Posted 3+ months ago | 1 answers | | Open

Related topics: earth, material, density, sun, helium