Answer:5
Explann:
I've actually not learnt it but i can solve other questions under Maths
Answer:
So, the mole ratio between sodium and sodium oxide is 2:1=2
Explanation:
0.0024 g of Ba(NO₃)₂
Explanation:
First we need to determine the molecular weight of barium nitrate Ba(NO₃)₂
molecular wight of Ba(NO₃)₂ = molecular weight of Ba × number of Ba atoms + molecular weight of N × number of N atoms + molecular weight of O × number of O atoms
molecular wight of Ba(NO₃)₂ = 137 × 1 + 14 × 2 + 16 × 6 = 261 g/mol
number of moles = mass / molecular weight
mass = number of moles × molecular weight
mass of Ba(NO₃)₂ = 0.625 / 261 = 0.0024 g
Learn more about:
moles
brainly.com/question/10392090
brainly.com/question/1445383
#learnwithBrainly
Transition metals are the metal located in the center block of the periodic table. Also, this block represents the D sublevel.
So, the answer is 3d.
Also, keep in mind that the D block starts "one period late". this means that if you are in period 4, the 3d orbital starts. if you are in period 5, that where 4d starts.
Answer:
A. Chemical
- AA battery contains chemical energy
