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3 years ago

These are the photos for part A

Chemistry

1 answer:

Alla [95]3 years ago

6 0

Answer:

Explanation:

For part C, this should be what the graph looks like.

The reactants should have higher energy that the products so that it can release energy. Recall the reaction is N2 + 3H2 => 2NH3 + energy, making it exothermic. Apparently, you are supposed to adjust the energy diagram on the simulation so that 20% of the reactants become the products.

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What factors allowed the koala population to grow beyond what their habitat could sustain?

Trava [24]

Answer:

Presence of 'Eucalyptus' tree species

Explanation:

The koalas are commonly known as the koala beers. They are arboreal animals that belongs to the class of mammal known as the 'Mursupials', and they are herbivorous in nature and found to be dominantly present in the country of Australia.

The factor that allowed the population of koala to grow significantly beyond their habitat could sustain is the presence of 'Eucalyptus' tree species on which they are directly dependent on. This type of tree is commonly found in countries such as Australia and Tasmania, where the climate is suitable and there occurs sufficient amount of rainfall.

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3 years ago

What are the chemical names of these compounds? KF: Mg3N2:

Elis [28]

Answer:

Magnesium nitride

Explanation:

3 0

3 years ago

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The overall reaction in the lead storage battery is

Troyanec [42]

Complete Question

The overall reaction in the lead storage battery is

$Pb(s) + PbO2(s) + 2H(aq)^+ + 2HSO_4^-(aq) ----> 2PbSO4(s) + 2H2O(l)$

Calculate E at 25°C for this battery when [H2SO4] = 5.0 M; that is, [H + ] = [HSO4− ] = 5.0 M. At 25°C, E° = 2.04 V for the lead storage battery.

Answer:

The voltage of the cell is $E = 2.12V$

Explanation:

From the question we are told that

The original voltage of the battery is $E = 2.04 V$

The concentration of [H2SO4] = 5.0 M

The concentration of [H + ] = [HSO4− ] = 5.0 M

At equilibrium

The reaction quotient is

$Q = \frac{1}{[[HSO_4^-]^2 [H^+] ^2]}$

Pb(s), Pb(s), 2 H2O(l),2 PbSO4(s) are excluded from the reaction above because they are solid and liquid thus there concentration does not change

$Q = \frac{1}{5^2 * 5^2}$

$= 1.6*10^{-3}$

So the potential for the battery cell is mathematically evaluated as

$E = E^o - \frac{0.05916}{2} log Q$

$= 2.04 - [\frac{0.05916}{2} log (1.6*10^{-3})]$

$E = 2.12V$

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3 years ago

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A visible streak of light that shows the path of a rocky object which has entered Earth’s atmosphere is

vladimir2022 [97]

Answer:

A visible streak of light that shows the path of a rocky object which has entered Earth’s atmosphere is Meteor.

Explanation:

Meteors are the dust and ice originated from the trails of comets. They are the rocks present in the space, the visible bright streak is not from the rock, rather from the glowing hot air because of the hot rock zips from the atmosphere. When large number of the meteoroids strikes the Earth at one time is called meteor shower. It is the open- source isomorphic rocks. These are visible from the one point in the dark sky. These happens due to the masses of cosmic debris known as meteoroids which are coming inside the Earth's atmosphere at extremely great speed on parallel trajectories.

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3 years ago

What property of an atom determines its general reactivity?

Firlakuza [10]

The Chemical reactivity of metals varies with your eletropositividade, so the more eletropositivo is the most reactive element is metal. The most reactive metals are those that have great tendency to lose electrons and therefore form positive ions with more ease.

hope this helps!

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3 years ago