Answer:
No, and yes. As there is a finite amount of matter in the
universe, only so much can be converted to make energy. There will
be a limit, though it is a long, long way from where we are
Explanation:
Answer:
c. abc₃
Step-by-step explanation:
1. a atoms
There are eight corners, each containing an a atom.
No. of a atoms = 8 × ⅛
No. of a atoms = 1
=====
2. b atoms
There is one central b atom.
=====
3. c atoms
There are six faces, each containing a c atom.
No. of a atoms = 6 × ½
No. of c atoms = 3
=====
4. Formula
The simplest formula is abc₃.
The correct answer is D. Becquerel showed that uranium gave off radioactivity, and the Curies discovered other radioactive elements.
D) Vinegar has the highest concentration of hydrogen ions in solution
1 mol of atoms contains Avogadro's number of atoms. Avogadro's number =6.022140857(74)×10^23
So there are
1
4
×
N
A
nitrogen atoms in such a molar quantity of nitric oxide, approx.
1.5
×
10
23
individual nitrogen atoms. How many OXYGEN atoms in such a quantity?
Here I use
N
A
as I would use any other collective number: a dozen, a score, a gross. I am perfectly free to do so, because any physical scientist knows precisely what I mean by a
mole
.
