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Zigmanuir [339]
3 years ago
10

Which feature indicates that Mars resides in the inner region of the solar system?

Chemistry
1 answer:
amm18123 years ago
8 0

Answer: The correct option is B.

Explanation: There are 2 regions of the solar system.

1) Inner region: There are 4 planets which lie in this region: Mercury, Venus, Earth and Mars. The inner region planets are rocky in nature. The orbit time of these planets around the sun is short. They have 0, 1 or 2 satellites in total. There is no ring system in these planets.

2) Outer region: There are 4 planets which lie in this region: Jupiter, Saturn, Uranus and Neptune. The outer region planets are gaseous in nature. The orbit time of these planets around the sun is long. They have usually more number of satellites around them. Ring system in these planets is very common.

Hence, Mars resides in the inner region of the solar system because it has a rocky surface that one could firmly stand on.

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Given the following equation: 2 KClO 3 --> 2 KCl + 3 O 2
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Explanation:

12.0 mol KClO3 × (3 mol O2/2 mol KClO3)

= 18.0 mol O2

6 0
2 years ago
A block of aluminum occupies a volume of 0.015 L and has a mass of 40.5 g. What is its density
yan [13]

Answer:

<h2>Density = 2700 g/L</h2>

Explanation:

Density of a substance can be found by using the formula

Density =  \frac{mass}{volume}

From the question

volume = 0.015 L

mass = 40.5 g

Substitute the values into the above formula and solve for the Density

That's

Density =  \frac{40.5}{0.015}

We have the final answer as

Density = 2700 g/L

Hope this helps you

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2 years ago
A student is told that both energy and mass must be conserved in every chemical reaction. She measures the mass of Hydrochloric
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Answer:

Explanation:

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The hydrogen gas formed is lost to the environment, so we can affirme that in the start we have the mass for all the H, Cl and Zn atoms in the solution, but after the reaction occurs, we have only the mass for the Cl and Zn atoms.

That's why the mass is less than the original.

The law that the student was told is only applied to closed environments.

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