Answer:
The answer to your question is 6.72 x 10²⁰ atoms
Explanation:
Data
Avogadro's number = 6.022 x 10²³ atoms
Volume = 22.4 L
Volume 2 = 25 ml
Number of atoms = ?
Process
1.- Convert mL to L
1000 mL ----------------- 1 L
25 mL ------------------ x
x = (25 x 1) / 1000
x = 25 / 1000
x = 0.025 L
2.- Use proportions and cross multiplication to find the answer.
22.4 L ----------------- 6.023 x 10²³ atoms
0.025 L -------------- x
x = (0.025 x 6.023 x 10²³) / 22.4
x = 1.51 x 10²² / 22.4
x = 6.72 x 10²⁰ atoms
The size of this engine in cubic meters is 
.
<u>Explanation:</u>
As it is stated that engine size can be measured depending upon the amount of air the cylinders displace, it is also stated that the engine of model Pontiac V8 has a size of 316.6 cubic inches. The problem is to convert the size of engine in cubic meters. We know that 1 inch = 0.0254 m.
Then 
As here the size of engine is 316.6 cubic inches, then in metres it will be
Thus, the size of the engine in cubic meters will be .
The correct option is A.
The law of definite proportion states that a given chemical compound always contains its component elements in fixed ratio irrespective of the source they are obtain from.
For instance, water is made up of two atoms of hydrogen and one atom of oxygen. Water can not be formed in any other way. Combining the oxygen and the hydrogen in another ratio will give us another thing not water.
Answer:
<h2>1 N2+ 1 O2 are two N atoms and two O atoms.</h2>
<h3>In NO, there is one N and one O atom.</h3>
For both sides to be the same, there have to be 2 NO molecules, as 2 NO molecules contain 2 N atoms and 2 O atoms, just like starting products of the reaction.
Answer:
A. Frictional
Explanation:
Friction is the force created when two solid objects in contact try to move past each other.
