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GrogVix [38]
3 years ago
8

A planet's orbital radius is related to its period is also known as

Chemistry
2 answers:
maxonik [38]3 years ago
6 0
Kepler's Laws HOPE THIS HELPS
mash [69]3 years ago
3 0
The answer is Kepler's first law. Kepler's first law<span> - sometimes referred to as the </span>law of harmonies<span> - compares the orbital period and radius of orbit of a planet to those of other planets. Unlike Kepler's first and second laws that describe the motion characteristics of a single planet, the third law makes a comparison between the motion characteristics of different planets. The comparison being made is that the ratio of the squares of the periods to the cubes of their average distances from the sun is the same for every one of the planets. 
Hope that helped</span>
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2 years ago
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How many grams of nitric acid will react completely with a block of iron metal that is 4.5 cm by 3.0 cm by 3.5 cm, if the densit
denpristay [2]

Balance the equation first: 

2 Fe+6 HNO3→2 Fe(NO3)3+3H2

Then calculate mass of Iron :

4.5×3.0×3.5 cm3(1 mL1 cm3)(7.87 g Fe1 ml)=371.86 g Fe

Now use Stoichiometry:

371.86 g Fe×(1 mol Fe55.85 g Fe)×(6 mol HNO32 mol Fe)=19.97 mol HNO3

Convert moles of nitric acid to grams

19.97 mol HNO3×(63.01 g HNO31 mol HNO3)=1258.3 g HNO3



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3 years ago
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2. What element could contain seven protons, eight neutrons, and seven electrons?
MAVERICK [17]

Answer:

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Explanation:

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sladkih [1.3K]

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K2SO4 (aq) + NaOH (aq)
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Answer:

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