(A) Gamma waves have the highest energy
Answer:
<h3><em>A is most likely your correct answer</em></h3>
Explanation:
A. Hills Covered with dry brush- this is most likely correct
b. Hills covered in lush grass- incorrect, because it is LUSH grass which would require lots of rain.
c. Flat lands with little grass- incorrect because grasslands DO have lots of grass.
D- incorrect because grasslands typically do NOT have rocky mountains <u>but are generally flatlands with grass</u>
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<h3>I am so sorry if this is wrong, I am just using common knowledge. TREASURE EVERY MOMENT AND HAVE AN AMAZING DAY!! ;)</h3>
Answer: Option (B) is the correct answer.
Explanation:
When the book was at the shelf, it had only potential energy as potential energy is the energy possessed due to the position of an object.
Therefore, when the book falls from the book shelf it gains kinetic energy as kinetic energy is the energy possessed due to the motion of an object.
Thus, when the books is falling from the top shelf then the motion of book increases therefore, we can conclude that the potential energy decreases as kinetic energy increases.
Answer:
HF & CH3OH
Explanation:
Hydrogen bonds are formed as a consequence of the attractions between a partially positive hydrogen (δ+ hydrogen) atom of a molecule and a lone pair of another electronegative element, such as a nitrogen, oxygen or fluorine molecule of another molecule.
In the case of HF, the partially positive hydrogen atom makes a hydrogen bond with the lone pair of a fluorine atom of another HF molecule in its proximity.
In the case of CH3OH, the partially positive hydrogen atom (bound to Oxygen) makes a hydrogen bond with the lone pair of an oxygen atom of another CH3OH molecule in its proximity.
<h3>Hope this help!</h3>
Answer:
0.493L
Explanation:
Let us write a balanced equation for the reaction. This is illustrated below:
Mg + 2HCl —> MgCl2 + H2
Next, let us convert 0.52g of Mg to mole. This is illustrated below:
Molar Mass of Mg = 24g/mol
Mass of Mg = 0.52g
Number of mole of Mg = Mass /Molar Mass = 0.52/24 = 0.022mole
From the equation,
1mole of Mg produced 1mole of H2.
Therefore, 0.022mole of Mg will always produce 0.022mole of H2.
1mole of H2 occupies 22.4L at stp.
Therefore, 0.022mole of H2 will occupy = 0.022 x 22.4 = 0.493L
