Answer:
Whenever a force is applied to an object, causing the object to move, work is done by the force. ... Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work
Answer: the statement that is not true is the second one: <span>It only occurs in very small atoms with low mass.
Explanation:
</span><span>The nuclear fission consists in the division or fragmentation of an atomic nuclei into smaller fragments releasing huge amounts of energy.
The biggest and heaviest atoms are unstable, meaning that they gain stability by splitting into smaller, lighter atoms.
So, the third given statement contradicts the previous fact.
That is why most of the heaviest elements have not been found naturally but have been created synthetically and have very short life times.
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The answer is Gas i would say
Answer:
hydrofluoric acid HF H+ + F- 7.2 × 10-4
33.6 moles are needed to completely react with 84.0 moles of O2
