B. ne chemical reaction involved in burning wood
c. less energy is released than is used by th...
Physics, 25.11.2019 08:31 dantew8238
B. ne chemical reaction involved in burning wood
c. less energy is released than is used by the reaction
3. why is a spark of energy required to begin the chemical reaction of
burning a fossil fuel? what is another name for this spark of energy?
4. the reaction below is an exothermic reaction
k2o (s) co2 (g) k2co3 (s)
a. rewrite this reaction and add "t energy" in the correct location.
b. describe how the energy level of the reactants compares to the energy
level of the products.
5. the reaction below is an endothermic reaction.
2hgo (s) 2hg +o2 (g)
a. rewrite this reaction and add energy" in the correct location
b. describe how the energy level of the reactants comporon to th
Answers: 2
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Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
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