Any atom (or ion) or compound that can accept a pair of electrons to form a covalent bond.
Nonmetals burning in oxygen form covalent type compounds, as compared to metals which form ionic compounds.
These are covalent compounds.
Helium does not form any compounds.
Amino acids polymerize to form proteins.
This macromolecule is a protein.
Organic compounds.
Fatty acids are found in the compounds of lipids. The fatty acid lipid compounds can be found in both plants and animals.
Every type of atom can form compounds.
These are the covalent compounds.
At least one H+ ion, called proton, and one anion which remains when the proton is donated to a base or to a water molecule: H3O+ (hydronium) is formed, lowering pH of the water.The above isn't actually wrong, though it's worth noting that that's actually a description of a particular type of acid (an Arrhenius or possibly Brønsted-Lowry acid). Lewis acids use a more general definition and are not required to contain any particular ion... any electron pair acceptor is a Lewis acid. (All Lewis acids are Brønsted acids, but not all Brønsted acids are Lewis acids.)
uh amino acids
Nonmetals burning in oxygen form covalent type compounds, as compared to metals which form ionic compounds.
These are covalent compounds.
Metals react with acids to form H2. Metalloids also show this type of reactions.
Well it depends on what kind of acid you're talking about. Most people think of acids as hydrogen donating compounds and that is indeed one type of acid. It fits under the Bronsted-Lowry definition of an acid and under the Arrhenius definition (which says that acids are compounds that dissociate in water into hydrogen ions etc.). However, under the Lewis definition, an acid is anything that can accept an electron pair and it doesn't have to contain hydrogen.
Amino acids form peptide bonds when bonding with one another.
All compounds consist of molecules.