a. burning coal
Chemistry, 19.11.2019 07:31 campbellkruger
All of the following require breaking and forming chemical bonds except
a. burning coal
b. rusting iron
c. evaporating water
d. tarnishing silver
Answers: 3
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An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons
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Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by
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Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
All of the following require breaking and forming chemical bonds except
a. burning coal
a. burning coal
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