Chemistry, 18.02.2021 03:00 vieraml58

Do only chemical reactions get colder/hotter? What is happening when potassium chloride dissolves?
• What do we think is happening when we put potassium chloride in
water? Is it dissolving?
What does dissolving even mean?
Is this phenomenon similar to or different from the chemical reactions
we have already seen?
• Is this a physical change or a chemical reaction? What evidence would
we need to collect to be able to know if it was one or the other?

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 02:40, Boayerik

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Answers: 2

continue

Chemistry, 22.06.2019 06:40, Arealbot

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine

Answers: 1

continue

Chemistry, 22.06.2019 07:40, sadcase85

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na, so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g

Answers: 1

continue

Chemistry, 23.06.2019 02:00, hermesrobles

Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.

Answers: 2

continue

You know the right answer?

Do only chemical reactions get colder/hotter? What is happening when potassium chloride dissolves?<...