Answer:
The answer will be A
Explanation:
I will send a photo with it
Answer:
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Explanation:
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Au is the symbol for gold. It comes from Latin word for gold, which is Aurunum. Its atomic number is 79.
The formula for kinetic energy is KE=1/2(mv²). Since both mass and velocity are multiplied by each other, particle with a larger mass needs to be moving slower than a particle with less mass if both have the same kinetic energy. You can think of it as 2KE/m=v² or 2KE/v²=m, If you increase the mass the velocity needs to decrease to keep the same KE value.
I hope this helps. Let me know in the comments if anything is unclear.
Mass 456
relative mass 82
moles
mass = rm x moles
456/82 = 5.5609756....