Answer:
2.64 ×
J
Explanation:
I think you should mark it a physics question instead but anyway.
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The Planck equation should be applied:
E = hv , while E is energy of proton; h is Planck constant; and v is frequency.
E = 6.6 ×
× 4 × 
= 6.6 × 4 × 
= 2.64 ×
J
Answer:
4.0625
Explanation:
1 grams Oxygen to mol = 0.0625 mol
0.0625 x 65 =4.0625
They have same mass
Explanation:
If you think wisely 100 pounds and 100 pounds have the same weight so the answer is equal
Answer: A. CaO
Took the test already.