Sodium becomes a positive ion and chlorine becomes a negative ion. The positive and negative ions attract each other and form the ionic compound sodium chloride. One calcium and two chlorine atoms are ...
Each toxin found in black widow venom targets the nervous system in a unique way. Among these substances, α-latrotoxin stands out. It is known to paralyze insects and crustaceans, and is poisonous to ...
A few drops of dilute sodium hydroxide solution react to form a white precipitate with aluminium ions, calcium ions and magnesium ions. However, if excess sodium hydroxide solution is added ...