Physical property of matter because you don't have to change its chemical make-up to tell, you can observe it using your senses and tools.
Energy can accomplish work
<u>a) Answer: </u>
<em>Number of molecules in 1 mole</em>
<u>Explanation:</u>
a) Whether we take any of the substance among all three of the given substances they will have the same number of molecules in 1 mole of the substance is considered and the value for this will be
<u>b) Answer: </u>
<em>In the given question </em><em>mass of the substance</em><em> which is </em><em>greatest</em><em> is asked for </em><em>one mole</em><em> and we also know that </em><em>mass of one mole is given by molar mass. </em>
<u>Explanation:</u>
b) It is known that is the molar mass for oxygen which is greater than that of hydrogen while fluorine has a molar mass of which on comparison shows that, it is the highest amongst all three.
Answer:
4.90 x 10 24 atoms
Explanation:
the 24 is the exponent for the 10
Answer:
80 m/hr
Explanation:
Changes from 20 to 100 meters in ONE Hour
changes 80 meters in one hour = 80 m/hr