Draw the geometric, linkage, and ionization isomers for [CoCl5CN][CN].

Answer:

B)−6,942 J /mol

Explanation:

At constant temperature and pressure, you cand define the change in Gibbs free energy, ΔG, as:

ΔG = ΔH - TΔS

Where ΔH is enthalpy, T absolute temperature and ΔS change in entropy.

Replacing (25°C = 273 + 25 = 298K; 25.45kJ/mol = 25450J/mol):

ΔG = ΔH - TΔS

ΔG = 25450J/mol - 298K×108.7J/molK

ΔG = -6942.6J/mol

Right solution is:

Answer:

400 kPa

Explanation:

using General Gas Law

[tex] \frac{100 \times 20}{100} = \frac{p \times 10}{200} [/tex]

[tex]p = 400[/tex]

The concept combined gas law is used here to determine the new pressure of the gas. The pressure of the gas obtained is 400 kPa.

The equation connecting the volume, pressure and temperature of a gas can be represented mathematically by an equation called the combined gas law. In this equation the temperature should be always in Kelvin.

The combined gas law is also defined as the ideal gas law without Avogadro's law. It is the combination of Boyle's law, Charles's law and Gay-Lussac's law. The equation is given as:

PV/T = k

Here 'P' is the pressure, 'V' is the volume, 'T' is the temperature and 'k' is a constant. The equation for two gases of different volumes and temperature is:

P₁V₁ / T₁ = P₂V₂ / T₂

Then P₂ = P₁V₁T₂ / T₁V₂

Here the new pressure P₂ is:

P₂ = 100 × 20 × 200 / 100 × 10

P₂ = 400 kPa.

Thus the new pressure is 400 kPa.

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Answer:

Volcanic eruptions release gases into the air.

Explanation:

This is because the atmosphere collects the gas from the volcano, the volcano is apart of the geosphere because it is a part of the earth's surfaces.

Answer:

materials which do not show the quality of lustre i.e. shiney surface

for eg- non metals except Iodine

Explanation:

hope it helps u plz mark as the brainliest

Answer:

These are materials that don't have lustre

Explanation:

They are not shiny.

They include non-metals but not iodine.

Hope it helps.

Answer and Explanation:

The answers would be:

A. Domestic cats live in about 34% of homes in the United States. (Statistical statements are, most of the time, facts and not an opinion)

C. Modern domestic cats are closely related to Near Eastern wildcats. (Fact)

D. Cats eat rodents that can spread disease. (Fact)

The above statements are facts because they don't make a judgement or show a position on the topic, only show what is known and proven to be true.

B and E are incorrect because they take a side of the topic, in which someone else might disagree with the opinion. These opinions aren't proven to be true.

#teamtrees #PAW (Plant And Water)

I hope this helps!

Answer:

Electronic configurations of three magnesium atoms and two nitrogen atoms.

[tex]{ \sf{.}}[/tex]

Explanation:

There is variety of evidence that supports the claims that plate tectonics accounts for

(1) the distribution of fossils on different continents

,(2) the occurrence of earthquakes, and

(3) continental and ocean floor features including mountains, volcanoes, faults, and trenches.

MARK AS BRAINLIST IF IT IS USEFUL

Answer:

PH STANDS FOR POTENTIAL OF HYDROGEN .

It represents the ratio of Hydronium ions (H3O) to Hydroxide ions (OH). It is a measure of acidity and alkalinity of a solution.

Answer:

The answer is B

Explanation:

Gelisols

Answer: 0.3 moles NH3

Explanation:

Answer:

The answers to your questions are given below.

Explanation:

Data obtained from the question include:

Mass (M) = 420.0 g

Temperature change (ΔT) = 43.8 °C

Specific heat capacity (C) = 3.52 J/g °C

Heat needed (Q) =...?

The heat needed for the temperature change can be obtained by using the following formula:

Q = MCΔT

Where:

Q is the heat needed measured in joule (J).

M is the mass of substance measured in grams (g)

C is the specific heat capacity of the substance with unit J/g °C.

ΔT is the temperature change measured in degree celsius (°C).

Thus, we can calculate the heat needed to change the temperature as follow:

Q = MCΔT

Q = 420 x 3.52 x 43.8

Q = 64753.92 J

Therefore, the heat needed to cause the temperature change is 64753.92 J

Answer:

chlorate=Acid

peroxide=Acid

silver=Acid

zinc= Basic

nitrite=Acid

Answer:

cooling a liquid

Explanation:

Temperature is lowered and the energy of molecules, and therefore number of available configuration , is lowered

The thermal energy present in the system for the product formation is entropy. Cooling a liquid can decrease the entropy of the thermodynamic system. Thus, option C is correct.

Entropy is the energy and the heat present in the reactant of the thermodynamic system that is associated with the randomness and disorder of the particle matter in the reaction system.

Entropy is dependent on factors like dissolution, temperature, randomness, kinetic energy, etc. The entropy increases with an increase in the dissolution and tempearture.

The process of cooling liquid lowers the temperature which in turn decreases the kinetic energy and randomness of the molecules and at last, the entropy decreases.

Therefore, the cooling of the liquid decreases the entropy.

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Answer:

C is gaining 2 electrons

Explanation:

O has a 2- charge so for CO to pick up another O atom would add 2 more electrons.

Answer:

C gains 2 electrons

Explanation:

In the redox reaction, CO is changed into CO2 which means there is an additional oxygen. Oxygen loses 2 of its electrons in order to neutralize. So, C must be gaining 2 electrons in order to make the bond.

Answer:

1) The volume occupied by an atom is composed of mainly empty space

2) Atoms have a very small, relatively dense, central nucleus that is positively charged

3) The region around the nucleus of an atom are orbited by negatively charged electrons in a the same fashion planets orbit around the Sun.

Explanation:

The selection of gold for the gold foil experiment was due to its ability to be rolled into extremely thin sheets such that it was expected for alpha particle to perforate or pass through the foil.

Answer:

great

On a scale of 1-10 I give you a 10

Explanation:

what about brainliest

Answer: I agree 100%

Explanation: But you may be too hot for me lol.

Answer:

As the car starts to slide down the ramp, it is kinetic energy and when it's on the top of the ramp,  it is potential energy. We can see that the energy is now being transferred through the car and ramp.

Thin layer chromatography(TLC) works with the principle of separation through adsorption.

It is used in the isolation and extraction of lipids through the following steps:

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Answer: Option (A) is the correct answer.

Explanation:

An atom who has seven valence electrons in its ground state will have the following electronic configuration in its sub shells as 2, 7.

Thus, there will be in total 9 electrons and it is known that fluorine has atomic number 9.

Whereas sodium has 2, 8, 1 electrons in its sub-shell.

Calcium has 2, 8, 8, 2 electrons in its sub-shell and oxygen has 2, 6 electrons in its sub-shell.

Thus, we can conclude that out of the given options, fluorine is the element whose atom in the ground state has seven valence electrons.

Answer:

CaF2

Explanation:

Calcium fluoride is a solid formed by the chemical combination of Calcium (Ca) and Fluorine (F). Two molecules of fluorine (F2) and one molecule of Calcium (Ca) are needed to form the Calcium Fluoride molecule.

An ionic bond is formed between the Calcium and Fluorine atoms i.e. electrons are transferred from calcium atoms to fluorine atoms. The calcium ion is a cation with formula; Ca2+ while fluorine is an anion with formula; F-. Hence, it takes two molecules of Fluorine ion (F-) to form a relatively stable and neutral molecule with 1 molecule of Calcium ion (Ca2+).

Answer:

New ideas would be created and tested

Explanation:

All old ideas would be discarded.

Scientific evidence would be weakened.

New ideas would be created and tested.

The limitations of science would be evident.

In science, old ideas are usually improved or modified and not entirely discarded. The old ideas form the basis for new ideas after extensive reviews. Differences in the interpretations made by scientists on any particular phenomenon give rooms for reviews. The reviews often generate new ideas or hypotheses and these can be tested using relevant experimental procedures according to the scientific method.

Hence, the correct answer would be that new ideas would be created and tested.

According to the question,  each mixture decrease the boiling point of the water.

Boiling temperature is defined as the temperature at which liquid change into a vapour at the atmospheric pressure at sea or ocean level.

For example the boiling temperature of water is 100 degree celcius.

Thus, each mixture decrease the boiling point of the water, option "A" is correct.

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Answer:

1. 0.97 V

2. [tex]Al_(_s_)/Al^+^3~_(_a_q_)~//~Ag^+~_(_a_q_)/Ag_(_s_)[/tex]

Explanation:

In this case, we can start with the half-reactions:

[tex]Ag^+~_(_a_q_)->~Ag_(_s_)[/tex]

[tex]Al_(_s_)~->~Al^+^3~_(_a_q_)[/tex]

With this in mind we can add the electrons:

[tex]Ag^+~_(_a_q_)+~e^-~->~Ag_(_s_)[/tex]  Reduction

[tex]Al_(_s_)~->~Al^+^3~_(_a_q_)+~3e^-~[/tex] Oxidation

The reduction potential values for each half-reaction are:

[tex]Ag_2S~+~e^-~->~Ag_(_s_)~+~S^-^2~_(_a_q_)[/tex] - 0.69 V

[tex]Al^+^3~_(_a_q_)+~2e^-~->~Al_(_s_)[/tex] -1.66 V

In the aluminum half-reaction, we have an oxidation reaction, therefore we have to flip the reduction potential value:

[tex]Al_(_s_)~->~Al^+^3~+~2e^-~[/tex] +1.66 V

Finally, to calculate the overall potential we have to add the two values:

1.66 V - 0.69 V = 0.97 V

For the second question, we have to keep in mind that in the cell notation we put the anode (the oxidation half-reaction) in the left and the cathode (the reduction half-reaction) in the right. Additionally, we have to use "//" for the salt bridge, therefore:

[tex]Al_(_s_)/Al^+^3~_(_a_q_)~//~Ag^+~_(_a_q_)/~Ag_(_s_)[/tex]

I hope it helps!

Answer:

4-phospho,Bromooctane

Answer:

5.49

Explanation:

pH = - log[3.26 x 10-6] =5.49

Answer:

The four characrteristics of warm blooded animals are÷

Explanation:

i=They can keep its body temperature the same no matter what the outside temperature .

ii=They can maintain a constant body temperature.

iii=They obtain energy from food consumption.

iv=They maintain their body temperature higher than environment.

Answer:

i) Their body temperature remain constant in any climate.

ii) They obtain energy from food consumption

I only know this much:)

Answer:

The answers are below

Explanation:

A) 46% of 154 = 70.84

B) 31% of 154 = 47.74

C) 72% of 154 = 110.88

D) 27% of 154 = 41.58

E) 55% of 154 = 84.7