1. What first initiated the formation of galaxies?
areas of greater gas density
expansion for...
1. What first initiated the formation of galaxies?
areas of greater gas density
expansion forces on the gas
concentration of dark matter
2.
In what direction is the universe moving?
condensing toward the center
expanding out from the center
at equilibrium with the center
3.Which factor suggests that an elliptical galaxy will form?
formed in isolation
higher angular momentum
faster cooling rate
Answers: 2
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The isotonic saline solution described in part a is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. based on this information, what can be said about these two solutions?
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Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.
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If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?
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Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen
Answers: 1
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