Explanation:
The bone Wich is answer A
Explanation:
Mass ratio C : H : N = 27.3 : 9.10 : 63.6
Mole ratio C : H : N = 27.3/12: 9.10/1 : 63.6/14
( Divide the mass ratio by their molar masses to find the ratio between moles)
Mole ratio = 2.275 : 9.10 : 4.54
= 2.275/2.275 : 9.10/2.275 : 4.54/2.275
= 1 : 4 : 2
Answer is CH4N2
Its C..... A pegmatitic is a crystals usually larger than 2.5 cm in size.... look in to it? :)
First, we have to to whatever is in the parentheses:
(26 + 2)/7
(28)/7
Now solve:
28/7
4
Hope this helps!
Answer:
72N
Explanation:
Force = mass × acceleration
= 12 × 6
= 72N