Because different objects give out electromagnetic radiation at different frequencies. Some objects are very ea...
Hope this help
Answer:
7.22 x 10²³molecules
Explanation:
Given parameters:
Number of moles of hydrogen = 1.2moles
Unknown:
Number of molecules of hydrogen = ?
Solution:
From the concept of moles, a mole of a substance contains the Avogadro's number of particles.
1 mole of a substance = 6.02 x 10²³ molecules;
So; 1.2 moles of hydrogen = 1.2 x 6.02 x 10²³ molecules;
= 7.22 x 10²³molecules
Answer
there are to answers one is an answer to a problem or a mixture of chemicals
Explanation:
Answer:
Magnesium is the most reactive element. it is higher than the other elements (Fe, Pb, Zn) in the electrochemical series
9. Well it never snows on the coast so I would say C. Warmer. 10. NC is on the east coast so for water to move towards it the water would be going A. West :)
