A. Na2S+CaCl2 CaS + Na → C. Zn(s) + H₂SO4 → ZnSO4+H2 1 B. Cu (g) → Cu²(g) + le D. Cu(g) → Cu¹*(s) + le Q13. Which equation correctly represents the first ionization of copper? A. Cu(g) → Cu¹* (g) + le C. Cu(s) → Cut(g) +le

Natural way of food preservation has been part of the Filipino cuisine and food culture, this enables Filipino families to store food for future consumption and for "flavor enhancement". However, since these preservation methods are done naturally (without preservative) the tendency of food spoilage is very high, and this has been a big concern in Natural Food Preservation. Now as a Filipino student, what proposition would you suggest in fixing this concern? And Which concept in General Chemistry II can be best applied to understand this phenomenon? 5.

X** H. H HH Н. `H H. Η Η CHA C3H6 C3H3

According to the kinetic-molecular theory, gas molecules have     little distance between molecules.     weak interactions between molecules.     less energy than molecules of a solid.     strong interactions between molecules.

Chemistry 1) CH3 CH3 HO. Br 2) CH3

Can you please write it by keyboard because I didn't understand some words

Cl2 FeCl3 CH,CI CI II II IV

The study of detecting small quantities of substances in samples would most likely be performed by a chemist in the branch of chemistry known as ___ . organic chemistry biochemistry inorganic chemistry analytical chemistry physical chemistry

Fill in the box with the answer and provide explanation.

Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time passes. Gasoline is an example of a: A) heterogeneous mixture B) Chemical compound C) Chemical element D) Solution