How are stars and comets different?
A. A star has a solid rock and gas surface, while a comet has tail of dust and gas.
B. A star has a tail of dust and gas, while a comet has a solid rock surface.
C. A star is made up of burning gases, while a comet is made up of ice, gases, rocks, and dust.
D. A star is made up of ice, rocks, and dust, while a comet is made up of burning gases.
Answers: 3
Chemistry, 22.06.2019 01:00
The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
Answers: 3
Chemistry, 22.06.2019 04:20
Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h
Answers: 1
Chemistry, 22.06.2019 05:50
In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst
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Chemistry, 22.06.2019 12:30
The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
Answers: 1
How are stars and comets different?
A. A star has a solid rock and gas surface, while a comet has t...
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