Chemistry, 18.10.2019 07:30, daydallas01
Which best describes a difference between energy transformations in power plants and dams?
only power plants use fossil fuels to transform energy.
only dams use fission to generate thermal energy.
only power plants use water to turn turbines.
only dams use mechanical energy to produce electricity.
Answers: 3
Chemistry, 21.06.2019 23:20, anggar20
Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night. when he took it out, its new volume was 322 milliliters, but its pressure was the same. if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is kelvins.
Answers: 2
Chemistry, 22.06.2019 18:00, kingamir
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, 22.06.2019 23:00, DESI111609
What is the average rate of the reaction between 10 and 20 s?
Answers: 1
Chemistry, 23.06.2019 03:30, rniadsharri16
Select the correct lewis structure for fluorine which is group 7a element?
Answers: 1
Which best describes a difference between energy transformations in power plants and dams?
Mathematics, 13.02.2021 02:00
Biology, 13.02.2021 02:00
English, 13.02.2021 02:10
Mathematics, 13.02.2021 02:10
English, 13.02.2021 02:10
Mathematics, 13.02.2021 02:10