4 Points
Match each element to the correct description of its usual behavior in a
chemical reaction.
Argon (Ar)
Will lose electrons
Sodium (Na)
Will gain electrons
Silicon (SI)
Could lose or gain
electrons
Oxygen (0)
Does not gain or lose
electrons

Complete the sentence. the lower the hydrogen ion concentration, the the ph. higher lower closer to 7 closer to 0

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Enzymes affect the reactions in living cells by changing the