Answer:
2 Mg + O2 → 2 MgO b. From the reaction in the previous question, how many moles of oxygen are needed to completely react with 12 moles of magnesium.
Explanation:
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Answer:
modify plant communities covering almost half of Earth's land surface
Explanation:
When salt is in water it creates electrolytes which are able to conduct electricity
Answer:
6 M
Explanation:
n = m/M
m= 60g
M(NaOH)= 23 + 16 + 1 = 40
n= 60/40 = 1,5 mol
Therefore c = n/ V = 1,5/ 0,250 = 6
Answer:
0.316 m
Explanation:
The wavelength of an electromagnetic radiation is given by the formula :
Speed of the electromagnetic radiation/ frequency of the electromagnetic radiation
Speed of electromagnetic radiation is given by 3*10^8 m/s
Frequency of the electromagnetic radiation is 9.50*10^8 Hz
Substituting the relevant values in the above formula:
3*10^8/9.50*10^8 = 3/9.5=0.316 m
So the required wavelength is 0.316 m