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zubka84 [21]
4 years ago
13

If the entire solar system were about the size of a quarter (roughly 1" in diameter), approximately how far away would the neare

st star be?
Chemistry
1 answer:
san4es73 [151]4 years ago
4 0

Answer:

Explanation:

If our entire Solar System were the size of a quarter, the planets and the sun is now a tiny speck of dust. The flat disc of the coin can represent the orbits of the planets.

Using this scale, the diameter of our Milky Way galaxy will be about the size of North America.

The nearest star, other than our own Sun, is about four light years away. That means it takes four years for its light to reach us. Since light travels at a speed of 3.0 x 10^8 meters per second, each light year is such a great distance. Proxima Centauri Milky way would be another quarter, two soccer fields away.

A much further star, Deneb is actually 1,800 light years away, the nearest star would be about 24,000 miles away.

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Answer:

When writing equation the mass on left side of equation must be equal to the mass on right side. True

Explanation:

The chemical reactions always follow the law of conservation of mass.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

Explanation:

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

In photosynthesis reaction:

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6 0
3 years ago
The bond type in CaO is
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CaO is an ionic bond
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3 years ago
Aspartame (c14h18n2o5) is a solid used as an artificial sweetener. its combustion produces carbon dioxide gas, liquid water, and
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5 0
4 years ago
The figure below represents a reaction.What type of reaction is shown?
o-na [289]
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Or SO3 + H2SO4 = H2S2O7
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FAKE   ITS NOT REAL

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