Answer:
i think the answer would be C
Explanation:
no matter what you do to the jar the mass will stay the same. unless you add more nails
Answer:
Saturated hydrocarbons are the compounds containing only single covalent bonds. These are also known as alkanes. Unsaturated hydrocarbons are the straight chain compounds containing double or triple covalent bonds. These compounds are less reactive. . An unsaturated compound is a chemical compound that contains carbon-carbon double bonds or triple bonds, such as those found in alkenes or alkynes, respectively.
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Hope This helps in a way.
A solid, a liquid or a gas.
It is Exothermic Change because,Exothermic is a chemical reaction that releases energy it could be light or heat. :)
Answer: 5 → 2
Explanation: An electron when given enough energy will get excited to the higher states and when it returns to the ground state will emit energy in the from of light.
The most energetic energy level will be 5 → 2 because in this, energy level 2 is the ground state and energy level 5 is the excited state . Thus more energy will be needed by the electron to move towards the higher excited state.
The energy required by the 4 → 2 energy level will be of medium level and
3 → 2 will require the least energy.
The image for the reference is shown below.