Hydrogen is in a state of matter as a gaseous form. (so the answer is gas)
Answer: a. native species
Proteins and fats i believe... Its been awhile.
Answer: Heterotrophs obtain energy by eating plants and animals. Plants are autotrophs, absorbing the sun's energy through photosynthesis and making glucose.
Explanation:
Ionic bonds form always form between a metal and a nonmetal, so the answer is D, Magnesium and Bromine.
Sodium is a metal, so a bond between two Sodium atoms will not be ionic.
Fluorine is a non-metal, so a bond between two will be covalent bond instead of an Ionic.
Magnesium and Lithium are both metals, so a bond will not be ionic.
On the other hand, Magnesium is a metal and Bromine is a non-metal, so a bond between them will be ionic.
