Chemistry
Chemistry, 29.03.2021 21:30, xxaurorabluexx

Which of the following best describes the reaction that occurs when hydrogen-iodide is cooled? A It is a physical reaction because the number of atoms are the same. It is a physical reaction because the number of atoms are the same.

B It is a physical reaction because the number of molecules is the same. It is a physical reaction because the number of molecules is the same.

C It is a chemical reaction because the atoms are arranged in the same way. It is a chemical reaction because the atoms are arranged in the same way.

D It is a chemical reaction because the atoms are rearranged into new molecules.

answer
Answers: 3

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 00:40, eamccoy1
Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).
Answers: 2
image
Chemistry, 22.06.2019 09:00, yogibear5806
Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
Answers: 2
image
Chemistry, 22.06.2019 10:30, mv603177
Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic
Answers: 1
image
Chemistry, 22.06.2019 11:40, tatemelliott
Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.
Answers: 3
Do you know the correct answer?
Which of the following best describes the reaction that occurs when hydrogen-iodide is cooled? A It...

Questions in other subjects:

Konu
Mathematics, 24.04.2020 01:48