Chemistry, 23.09.2019 02:20, Aliciaonfleek

2. stars composed of heavier (more massive) elements are often slightly older than stars
made predominantly from hydrogen and helium. based on your data, is the newly
discovered star a younger star? explain your answer.

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 23.06.2019 01:00, breemills9552

What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds

Answers: 1

continue

Chemistry, 23.06.2019 01:30, yarrito20011307

Which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.

Answers: 1

continue

Chemistry, 23.06.2019 02:50, igraha17

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ

Answers: 2

continue

Chemistry, 23.06.2019 05:00, andrwisawesome0

Match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) amount of product predicted to be produced by the given reactants theoretical yield c) reactant that can produce more of the product

Answers: 3

continue

Do you know the correct answer?

2. stars composed of heavier (more massive) elements are often slightly older than stars
made p...