Opposite pairs form ionic bonds, due to this the answer is D - Li and Br; They have unlike charges.
        
                    
             
        
        
        
Answer:
The state of matter of rain is liquid. Clouds are 2 states of matter, liquid and gas
Explanation:
 
        
             
        
        
        
Answer with Explanation:
Babies are formed when the sperm cell from the male testicular gonad meets with the women's egg cell (from the ovaries). This penetration causes the<em> "fertilization process." </em>This naturally occurs two weeks from the woman's last day of menstruation. The fertilization allows the egg to rapidly divide. This is followed by "implantation," a process whereby the blastocyte attaches to the woman's endometrium. <u>Around three weeks, the blastocyte is formed into an embryo. </u>This will be called fetus once the woman reaches its 8th week of pregnancy. 
This is a brief process regarding your question on how babies are formed.
 
        
                    
             
        
        
        
Answer:
The new pressure exerted by the He, is 1266.6 Torr
Explanation:
A typical problem of gases where the volume is increased and the moles and T° keeps on constant. This is an indirect proportion because when the volume of the flask is increased, pressue decreases because molecules  collide to a lesser extent with the walls of the vessel. 
P₁ . V₁ = P₂ . V₂
760 Torr . 5L = P₂ . 3L
P₂ = (760 Torr . 5L) / 3L
P₂ = 1266.6 Torr