Which statements about the formation of the solar system are true and in a correct order?
a....
Chemistry, 17.09.2019 21:30 pbargy9551
Which statements about the formation of the solar system are true and in a correct order?
a.
a black hole collapsed to form the sun; small planetary objects formed; small planetary objects collided with each other to form larger objects.
b.
most of the dust and gas contracted into a central mass—the sun; half the mass of the cloud condensed to form jupiter; asteroids and comets crashed into the sun to form the smaller planets.
c.
a spinning cloud of dust began to compress to form the sun; small planetary objects formed; hydrogen and helium became concentrated in the outer solar system to form the outer planets.
d.
gravitational force held the newly formed planets around the sun; small planetary objects formed; hydrogen and helium became concentrated in the outer solar system to form the outer planets.
Answers: 1
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Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
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How many grams of mgbr2 are needed to produce 75g or metal?
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