Juan noticed that a door that sticks on hot days does not stick when it cools off at night. This is because the metal contracts as it cools. The reason for this is that, as the metal cools, the atoms:
become smaller and take up less space .
slow down and move closer together.
merge together to form fewer atoms.
speed up and move further apart.
Answers: 1
Another question on Chemistry
Chemistry, 22.06.2019 01:30
Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%
Answers: 3
Chemistry, 22.06.2019 12:30
Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?
Answers: 2
Chemistry, 23.06.2019 01:00
Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.
Answers: 2
Chemistry, 23.06.2019 06:00
When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
You know the right answer?
Juan noticed that a door that sticks on hot days does not stick when it cools off at night. This is...
Questions
Spanish, 31.01.2020 04:53
History, 31.01.2020 04:53
Mathematics, 31.01.2020 04:53
Mathematics, 31.01.2020 04:53
Mathematics, 31.01.2020 04:53
Geography, 31.01.2020 04:53
French, 31.01.2020 04:53
Mathematics, 31.01.2020 04:53
History, 31.01.2020 04:53
Biology, 31.01.2020 04:54
Mathematics, 31.01.2020 04:54
