Answer:
a. Any one way then I can say that Aluminum sulfide has mass per mole of ≈150.2g while aluminum has mass per mole of 26.9g
b. Sulfur is an element but aluminum sulfide is a compound
c.Beryllium and chlorine
d. BeCl2
e.i. Metals form ions by losing electrons but nonmetals form ions by gaining electrons
ii.A metal can react with an acid to produce a salt a nonmetal doesnt
iii. A metal forms ionic compounds whilst nonmetals form covalent compounds
True, because for example you are on a bus and you want to know if you are moving or not so you look at a house which doesn't move and stays stationary.
Answer:
The industry standard life span is about 25 to 30 years, and that means that some panels installed at the early end of the current boom aren't long from being retired is the operating life time of a PV module .
Answer:
Explanation:
Force 1 
Force 2 
Acceleration at stage 2 
Generally the weight of the Craft W is given as
W= upward force(thrust)
Therefore
Answer:
sorry- but what........?!
