Answer:
Barium iodide
Explanation:
barium iodide is ionic compound. it is formed by the barium metal and halogen element iodine.
Barium is present in group two have two valance electrons.
Iodine is present in group seventeen and have seven valance electrons.
Iodine needed one electron two complete the octet.
That's why two atoms of iodine combine with one atom barium and form ionic compound called barium iodide.
Ba⁺² I₂²⁻
The overall charge is equal cancel the effect of each other and form over all compound neutral.
because if you kick a ball say and i t has less it will not hit the ground as hard but if it does it will hit the ground harrder
Answer:
The water bends due to the static electricity on the balloon.
Explanation:
The static electricity you built up by rubbing it against the balloon attracts the stream of water, bending it towards the comb or balloon like magic!
Negatively charged particles called electrons jump the wool to the balloon as they rub together, the comb now has extra electrons and is negatively charged. The water features both positive and negatively charged particles and is neutral. Positive and negative charges are attracted to each other so when you move the negatively charged balloon towards the stream, it attracts the water's positively charged particles and the stream bends!
We are given with the mass of Arsine (
The mass of arsine is 15g
there is a relation between moles, mass and molar mass of any compound which is
The molar mass of Arsine = atomic mass of As + 3X atomic mass of H
the molar mass of Arsine = 74.92 + 3X 1 = 77.92 g/mol
Let us calculate the moles as
