Hmm, I believe this is called Convection Currents.
Answer:
By 4 weeks, your baby will respond to your smile, perhaps with a facial expression or a movement. By 3 months, they will smile back at you. By 4 to 6 months, they will turn to you and expect you to respond when upset.
Explanation:
sorry but here is not option so I try my best to give answer
Answer:
Salt and water.
Explanation:
Neutralization is a chemical reaction in which acid and base are introduced together to form salt and water. In this reaction hydrogen + ions react with hydroxide - ions to form the salt. This is an exothermic reaction as heat is released during this chemical reaction.
I believe the answer is A) 10 ions of Mg and 20 ions of F