Answer:
Metallic Bonding
Explanation:
Zinc is a metal, as such it's atoms are held together by the metallic bond. Metallic bond is a type of chemical bond formed between positively charged ions in which there is a collective sharing of a sea of valence electrons.
Density is mass over volume.
Hey There!:
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
2 moles C2H2 ----------- 5 moles O2
35.0 moles C2H2 ------- moles O2
moles O2 = 35.0 * 5 / 2
moles O2 = 87.5 moles
hope this helps!
carbon dioxide I beleive.
dry ice is frozen liquid carbon dioxide and when it melts it gives off carbon dioxide gas.
