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3 years ago

Which list correctly describes the usual order of planets inward toward the sun?

Chemistry

2 answers:

cluponka [151]3 years ago

5 0

D is the answer. N, U, sat, J, mars, e, v, mer

san4es73 [151]3 years ago

4 0

Answer: D. N,U,SAT,J,MARS,E,V,MER

Explanation:

The solar system has 8 planets - 4 inner planets which are terrestrial and 5 Jovian outer planets. These are separated by asteroid belt present between the orbit of mars and Jupiter.

The order of planets inwards towards the Sun is:

Neptune, Uranus, Saturn, Jupiter, Mars, Earth , Venus and Mercury.

Some facts about these planets are:

Mercury is the first planet nearest to Sun and smallest planet of the solar system.

Venus is the hottest planet. The sun rays are trapped in the atmosphere.

Earth is the only planet where life exists.

Mars is known as the red planet because of the presence of iron oxide on its surface.

Jupiter is the biggest planet.

Saturn has beautiful ring system which can be seen from Earth. Saturn's density is very less. It can float in water.

Uranus and Neptune are blue in color due to presence of Methane in their atmosphere.

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) Given the following balanced equation, determine the rate of reaction with respect to [O2]. If the rate of formation of O2is 7

Travka [436]

Answer:

Rate of the reaction is 0.2593 M/s

-0.5186 M/s is the rate of the loss of ozone.

Explanation:

The rate of the reaction is defined as change in any one of the concentration of reactant or product per unit time.

$2O_3\rightleftharpoons 3O_2$

Rate of formation of oxygen : $7.78\times 10^{-1} M/s$

Rate of the reaction(R) = $\frac{-1}{2}\frac{d[O_3]}{dt}=\frac{1}{3}\frac{d[O_2]}{dt}$

$R=\frac{1}{3}\frac{d[O_2]}{dt}$

Rate of formation of oxygen=3 × (R)

$7.78\times 10^{-1} M/s=3\times R$

Rate of the reaction(R): $0.2593 M/s$

Rate of the reaction is 0.2593 M/s

Rate of disappearance of the ozone:

$R=-\frac{1}{2}\frac{d[O_3]}{dt}$

$\frac{d[O_3]}{dt}=-2\times R=-2\times 0.2593\times M/s=-0.5186M/s$

-0.5186 M/s is the rate of the loss of ozone.

6 0

3 years ago

Nitrogen dioxide gas is dark brown in color and remains in equilibrium with dinitrogen tetroxide gas, which is colorless. 2NO2(g

ss7ja [257]

Answer:

The forward reaction is exothermic.

Explanation:

Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.

When the mixture turned darker brown, this means that the reaction is shifted towards the left direction (reactants side).

The temperature is increased and the reaction shifted to the reverse direction, this means that the forward direction is exothermic.

Exothermic reaction releases heat and when increasing the temperature, the reaction will be shifted to the reverse direction to suppress the effect of increasing the temperature.
So the right choice is: The forward reaction is exothermic.

4 0

4 years ago

What is the difference between an atom an ion how to determine the charge

Eduardwww [97]

Explanation:

When an atom's outermost orbital gains or loses electrons (also known as valence electrons), the atom forms an ion. An ion with more protons than electrons carries a net positive charge and is called a cation. An ion with more electrons than protons carries a net negative charge and is called an anion

4 0

3 years ago

givi [52]

Mixture is a combination of two or more substances. The components of the mixture are not chemically reacted and can be separated using physical means.
compound is a combination of two or more substances that are chemically reacted or bound together. The components of the compound cannot be separated except by chemical reactions.

Answer:
(4) consist of two or more substances

5 0

4 years ago

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Which carbon skeleton represents an ether? (gradpoint)

sineoko [7]

The present carbon skeleton in an ether is C-C-C-O-C-C-C because ethers conatins C-O-C as functional group

7 0

3 years ago

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