Chemistry, 22.12.2021 14:00 nataliastrong3846
Activation energy in reaction is used to:
A- Overcome repulsion force between colliding molecules
B- Breaking bonds
C- Merge Valence electrons
D- All of them
Answers: 1
Chemistry, 22.06.2019 18:00
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
Chemistry, 24.06.2019 03:30
Savanna regions developed during the triassic period. t f
Answers: 1
Chemistry, 24.06.2019 04:00
If 17 l of a gas at a temperature of 67 °c and a pressure of 88.89 atm has its temperature increased to 94 °c and its volume decreased to 12 l, what is the new pressure? a. 25.71 atm b. 58.13 atm c. 116.7 atm d. 135.9 atm
Answers: 1
Activation energy in reaction is used to:
A- Overcome repulsion force between colliding molecules...
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