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Anika [276]
3 years ago
8

Why are constellations in predictable in the night sky but why are planets so hard to find?

Chemistry
1 answer:
Oksanka [162]3 years ago
7 0
Planets don’t produce their own light. They reflect on the light of the sun in the same way our moon reflects sunlight.
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Name the following ionic compounds that contain transition metals. Use the periodic table provided
Goryan [66]

The correct name of the compound CuCl is copper I chloride.

An ionic compound is formed two atoms when one loose electrons and the other atoms gains those electrons. Ionic bonds are actually an ion pair, a pair of oppositely charged ions held together by electrostatic interaction. Transition metals are elements with incompletely filled d orbitals. Copper is a transition element.

The compound CuCl is named copper I chloride. We can see that the copper is in the +1 oxidation state in this compound hence the name.

Learn more: brainly.com/question/1527403

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3 years ago
Select the correct answer. You are a sales representative for a company that makes a new alternate fuel for vehicles. You have p
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The answer would be how much greenhouse gas does your fuel produce compared with the current fuel sources.

hope this helps

5 0
3 years ago
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What effect would an isotonic solution have on the egg?
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It would begin osmosis on it.  If you put it in vinegar for example water would begin to seep through the membrane.
4 0
4 years ago
A stream leaving a mountain range deposits a large part of its load in a(n): alluvial fan sandbar meander sand dune
pshichka [43]

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3 0
3 years ago
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Which of the following is a completely elastic collision? A. a ball rebounds against a wall, reversing its direction, but at onl
Dmitry_Shevchenko [17]

Answer:

Answer E.

For a collision to be completely elastic, there must be NO LOSS in kinetic energy.

We can go through each answer choice:

A. Since the ball rebounds at half the initial speed, there is a loss in kinetic energy. This is NOT an elastic collision.

B. A collision involving sticking is an example of a perfectly INELASTIC collision. This is NOT an elastic collision.

C. A reduced speed indicates that there is a loss of kinetic energy. This is NOT elastic.

D. The balls traveling at half the speed after the collision indicates a loss of kinetic energy, making this collision NOT elastic.

E. This collision indicates an exchange of velocities, characteristic of an elastic collision. We can prove this:

Let:

m = mass of each ball

v = velocity

We have the initial kinetic energy as:

KE = \frac{1}{2}mv^2 + 0 = \frac{1}{2}mv^2KE=21mv2+0=21mv2

And the final as:

KE = 0 + \frac{1}{2}mv^2 = \frac{1}{2}mv^2KE=0+21mv2=21mv2

5 0
3 years ago
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