Explain why two oxygen atoms bond to a carbon atom to make a stable molecule of a carbon dioxide?

how many hydrogen atoms are needed to form 5 water molecules

which substances form covalent bonds?

10 H atoms combine with 5 oxygen to form 5 water molecules.

Explanation:

those substances which having low boiling point or low melting point such as water they form covalent bond.

Covalent bonds form between non-metal atoms. Each bond consists of a shared pair of electrons, and is very strong. Simple molecular substances and giant covalent structures have different properties.

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

      n