<span> because gasoline changes volume as a function of temperature or because there are different grades of gasoline or because the values are given in different units of measure .</span>
The average speed : 3.07 m/s
<h3>Further explanation</h3>
Given
d1 = 2 km
t1 = 9 min
d2 = 1.5 km
t2 = 10 min
Required
The average speed
Solution
Average speed = total distance : total time
total distance :
= d1+d2
= 2+1.5
=3.5 km
total time :
= t1+t2
= 9 min + 10 min
= 19 min
Average speed :
= 3.5 km : 19 min
= 0.184 km/min
= 3.07 m/s
Answer:
Yes
Explanation:
Because mixture is made up of two or more types of atoms .
Answer:
An atom
Explanation:
Because an ion is smaller than an atom and if we're talking about ions, iron would be called a Nitride ion or N3-ion, so ion come from atoms and saying that nitrogen is an atom.
<h2>
Answer:</h2>
<em>Hello, </em>
<h3><u>
QUESTION)</u></h3>
Whatever the chemical entity, one mole of an entity contains 6.02 x 10²³ entities, this is the Avogadro constant (Na).
<em>N = 2 x Na</em>
- N = 2 x 6.02 x 10²³
- N = 1.204 x 10²⁴
There are therefore 1.204 x 10²⁴ molecules of water in 2 moles of water.
