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alexandr402 [8]
4 years ago
9

Kepler was able to determine that the planets move slowest when they are _____.

Chemistry
2 answers:
kherson [118]4 years ago
6 0
Planets move slower when they are furthest from the sun. But when they are closer they move faster because of the gravitational pull of the Sun.

Hope this helps.


ValentinkaMS [17]4 years ago
5 0

Answer:

farthest

Explanation:

Kepler used Brahe's observational data for writing three laws of planetary motion. According to the first law, all the planets revolve about the sun in elliptical paths. According to second law, the line joining the Sun and the planet sweeps equal areas in equal intervals of time. It also implies that planet closer to the Sun travels faster than the planet away from it. According to the third law, the square of the orbital period is directly proportional to the cube of the semi-major axis.

Thus, planets move slowest when they are farthest from the Sun.

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When agno3 was added to test tube d it reacted with cl to form agcl precipitate. Did this result in a shift to the right or the
AlekseyPX

Answer:

Reaction will move rightwards.

Explanation:

Hello there!

In this case, according to the proposed question, it turns out possible for us to  figure out the effect of the addition of silver nitrate, by using the following representative equation for the formation of the silver chloride precipitate:

Ag^+(aq)+Cl^-(aq)\rightleftharpoons AgCl(s)

Now, due to the addition of silver nitrate, we will be actually adding silver ions to the solution, which means that, in terms of the Le Ch atelier's principle, the reaction will shift to the right towards the formation of more silver chloride precipitate.

Best regards!

4 0
3 years ago
0.378g grams of a compound is made up of 0.273g of Mg and 0.105g nitrogen. Find its empirical formula.
Harrizon [31]

Answer:

The empirical formula of the compound is Mg_3N_2.

Explanation:

Mass of magnesium in compound = 0.273 g

Mass of nitrogen in the compound = 0.105 g

Moles of magnesium =\frac{0.273 g}{24.305 g/mol}=0.0112 mol

Moles of nitrogen = \frac{0.105 g}{14.0067 g/mol}=0.00750 mol

Form empirical formula divides the lowest value of moles of an element present with all the moles of elements present.

Magnesium =\frac{0.0112 mol}{0.00750 mol}=1.5

Nitrogen =\frac{0.00750mol}{0.00750 mol}=1

The empirical formula of a compound:

Mg_{1.5}N_1=Mg_{\frac{15}{10}}N_1=Mg_{15}N_{10}=Mg_3N_2

The empirical formula of the compound is Mg_3N_2.

3 0
3 years ago
What is the reducing agent in the following reaction? <br><br> 2Na + 2H2O → 2NaOH + H2
Nimfa-mama [501]
Na is the reducing agent since it is being oxidized
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4 years ago
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How many atoms are in 1.75 moles of CHCl?
jok3333 [9.3K]
1.75 moles ChCl3 x (6.02 x 10 ^-23) / 1 mole = 1.0535 x 10^-22 atoms.

hope this was helpful :)
8 0
4 years ago
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