Chemistry, 07.04.2020 23:22, sandersmakaylaovq5vu

Classify the same processes as exothermic or endothermic.
Evaporation of alcohol from skin: liquid C3H30 +5.2 kJ → vaporized C3H30
Burning of propane in a gas grill: C3H8 +502 — 3C02 + 4H20 + 1652 kJ
Oxidation of iron to form rust 4Fe +30, 2Fe2O3 +2221 kJ

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 22:30, connienash95

Explain why scientists use shared characteristics to make cladograms.

Answers: 1

continue

Chemistry, 22.06.2019 01:30, adrian08022

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

Answers: 2

continue

Chemistry, 22.06.2019 09:00, kkmonsterhigh18

The diagram below shows a cell placed in a solution. a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution. only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it. it will expand as water moves into it. it will shrink as water moves into it.

Answers: 2

continue

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

continue

Do you know the correct answer?

Classify the same processes as exothermic or endothermic.
Evaporation of alcohol from skin: li...