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Black_prince [1.1K]

3 years ago

15

Choose the correct energy transformation for the burning of a piece of wood. A. heat energy to light energy B. light energy to h

eat energy C. chemical potential energy to heat energy D. heat energy to chemical potential energy

1 answer:

kotykmax [81]3 years ago

8 0

Answer:

C

Explanation:

In the case of burning wood, stored potential energy in the wood is released due to heating by other excited atoms.

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Group 2 in the penodic table contains the elements beryllium (Be), magnesium (Mg) , calcium (Ca) , strontium (Sf) )barium (Ba)an

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Answer:

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Explanation:

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2 years ago

Read 2 more answers

Draw the product of nucleophilic substitution with each neutral nucleophile. When the initial substitution product can lose a pr

Margaret [11]

Answer:

Neutral nucleophile are: H2O, CH3OH, NH3, RNH2, R2NH, R3N, RCOOH, RSH and PR3. The products by nucleophilic substitution are diverse depending on the different nucleophiles, obtaining alcohol, eter, amines, ester and tioeter considering only the nucleophiles with a hydrogen available.

Explanation:

Please see the images attached.

Nucleophilic subtitution with water occurs under Sn1 mechanism. That's it because water as nucleophile is so weak. With the other neutral nucleophiles, the reaction occur under Sn2 mechanism.

RSH + CH3I -----> RSCH3 + HI

3 0

2 years ago