All categories

3 years ago

Which element in group 17 has the highest ionization energy

Chemistry

1 answer:

Sergio [31]3 years ago

6 0

Answer:

fluorine

Explanation:

it has the highest electronegativity in the group and in the periodic table

You might be interested in

Type the correct answer in the box. Express the answer to three significant figures.

frutty [35]

Answer : The energy released is -3319.7 KJ.

Solution : Given,

Mass of methane = 59.7 g

Molar mass of methane = 16 g/mole

$\Delta H=-890KJ/mole$

The value of $\Delta H$ is in negative that means the energy is releasing.

First we have to calculate the moles of methane.

Moles of methane = $\frac{\text{ Mass of methane}}{\text{ Molar mass of methane}}= \frac{59.7g}{16g/mole}=3.73moles$

Now we have to calculate the amount of energy released.

The given reaction is,

$CH_4+2O_2\rightarrow CO_2+2H_2O$

From the reaction, we conclude that

1 mole of methane releases -890 KJ/mole of energy

3.73 moles of methane releases $\frac{-890KJ/mole}{1mole}\times 3.73mole=-3319.7KJ$ of energy

Therefore, the energy released is -3319.7 KJ.

5 0

4 years ago

Consider the reaction Cu + AgNO3 Ag + CUNO3 Which element is reduced? Which element is the oxidizing agent?

Dmitry_Shevchenko [17]

Answer:

silver is reduced and copper is oxidized

3 0

3 years ago

Read 2 more answers

Assuming no change in temperature and pressure, calculate the volume of O2 (in liters) required for the complete combustion of 1

Natali [406]

Answer : The number of moles of oxygen gas required are, 4.49 moles.

Explanation :

The balanced chemical reaction is:

$2C_4H_{10}(g)+13O_2(g)\rightarrow 8CO_2(g)+10H_2O(l)$

First we have to calculate the moles of butane gas.

As we know that, 1 mole of substance occupies 22.4 L volume of gas.

As, 22.4 L volume of butane gas present in 1 mole of butane gas

So, 15.5 L volume of butane gas present in $\frac{15.5}{22.4}=0.692$ mole of butane gas

Now we have to calculate the moles of oxygen gas.

From the balanced chemical reaction we conclude that,

As, 2 moles of butane gas react with 13 moles of oxygen gas

So, 0.692 moles of butane gas react with $\frac{13}{2}\times 0.692=4.49$ moles of oxygen gas

Therefore, the number of moles of oxygen gas required are, 4.49 moles.

3 0

4 years ago

What is the molecular formula of following show how it is done.1 nitric acid 2 Sulphuric acid 3 Methane 4 Potassium oxide 5 Silv

olga2289 [7]

Answer:

1.HNO₃

Nitric acid is a nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a hydroxy group and by equivalent bonds to the remaining two oxygen atoms.

2.H₂SO₄

3.CH₄

Methane (US: , UK: ) is a chemical compound with the chemical formula CH4 (one atom of carbon and four atoms of hydrogen). It is a group-14 hydride and the simplest alkane and is the main constituent of natural gas.

4.K₂O

5.AgCl

6.CaCO3

Limestone consists of calcium carbonate, which has the chemical formula CaCO3. Limestone exists in sedimentary and crystalline form.

Explanation:

hello .

Don't Forget To Follow, Brainliest, And Give Me Heart :)

6 0

3 years ago

An atom that produces nuclear energy is sometimes called a

Airida [17]

Nuclear fission i think it is.

3 0

3 years ago