subject
Chemistry, 09.10.2019 21:50 Mochalav6675

Arrange the events in the life of a star in the correct order.

all that remains of the star now is the core. in some cases, the star turns into a black hole.

as the nuclear fusion sets off a chain reaction, the nebula gets hotter and brighter and turns into a star.

the star stays in the main sequence stage for a long time.

the star runs out of hydrogen and turns into a planetary nebula or a supernova, depending on its mass.

heavy elements are created when the supernova explodes.

the temperature increases in the center of a nebula, and nuclei begin to fuse.

ansver
Answers: 3

Other questions on the subject: Chemistry

image
Chemistry, 21.06.2019 23:00, dbegay36
At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas
Answers: 2
image
Chemistry, 22.06.2019 07:30, kimberlyrios12p0ts98
Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?
Answers: 2
image
Chemistry, 23.06.2019 00:40, joe7977
To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.
Answers: 1
image
Chemistry, 23.06.2019 01:40, mandilynn22
Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?
Answers: 1
You know the right answer?
Arrange the events in the life of a star in the correct order.

all that remains of the st...

Questions in other subjects:

Konu
Mathematics, 30.03.2020 03:33
Konu
Mathematics, 30.03.2020 03:34
Konu
Mathematics, 30.03.2020 03:34