All categories

2 years ago

Explain in terms of electron configuration why selenium and sulfur have similar chemical properties

Chemistry

2 answers:

Ber [7]2 years ago

8 0

Answer: they have the same chemical properties, because their electronic configuration ends with 6 valence electrons.

Explanation: selenium and sulphur have similar chemical properties because according to their electronic configuration, they both have the same valence electron(6). This valence electron makes them to fall under the same group. Elements in the same group tends to have similarities in their chemical properties.

siniylev [52]2 years ago

5 0

They are both in the same column on the periodic table and this means they have similar stability. You can use the electron configuration diagram to show how there outer most shells will have the same amount of electrons on them which is another way of describing how they have the same stability and thus the similar chemical properties.

You might be interested in

Bobby's mom sets a small pot of water on the stove and lights the burner. Ten minutes later, Bobby notices small bubbles and see

dolphi86 [110]

There are no answers, list them so I can answer.

7 0

1 year ago

Read 2 more answers

A tank holds 6.90 m3 of water. What is the volume in ft3? (3.28 ft = 1 m, Remember significant figures, but this answer does not

AleksAgata [21]

Volume of tank = $6.9 m^{3}$ (given)

Since, $1 m = 3.28 ft$

So,

$1 m^{3} = 35.287 ft^{3}$

For $6.9 m^{3}$ :

$6.9\times 35.287 ft^{3} = 243.4803 ft^{3}$

The significant rule for multiplication, states that the number of significant figures in the answer obtained by multiplication is determined by the value with the lowest number of significant digits.

Since, the minimum number of decimal places in the above multiplication operation is 1 so, the final result must be upto 1 decimal place only.

$243.4803 ft^{3} \simeq 243.5 ft^{3}$

Hence, volume in $ft^{3}$ is 243.5.

5 1

1 year ago

Read 2 more answers

Calcium reacts with bromine to form calcium bromide. 2.1 Which atom will lose electrons? 2.2 How many electrons will it lose? 2.

Juli2301 [7.4K]

Answer:

For 2.1: Calcium atom will loose electrons.

For 2.2: It will loose 2 electrons.

For 2.3: Bromine atom will gain electrons.

For 2.4: It will gain 1 electron.

For 2.5: The ions formed are $Ca^{2+}\text{ and }Br^-$

For 2.6: The chemical formula is $CaBr_2$

Explanation:

Calcium bromide is formed by the combination of calcium and bromine atoms. This compound is ionic compound because electrons get transferred from one atom to another atom.

Calcium is the 20th element of the periodic table. It is a metal and it looses its electrons. The electronic configuration for this element is $1s^22s^22p^63s^23p^64s^2$

This element will loose 2 electrons and forms $Ca^{2+}$ ion.

Bromine is the 35th element of the periodic table. It is a non-metal and it gains electrons. The electronic configuration for this element is $[Ar]4s^23d^{10}4p^5$

This element will gain 1 electron and forms $Br^-$ ion.

The chemical formula for the given compound is $CaBr_2$

8 0

1 year ago

9 The Haber process is a reversible reaction. N2(g) + 3H2(g) 2NH3(g) The reaction has a 30% yield of ammonia. Which volume of am

Illusion [34]

Answer: 3.36 L of ammonia gas

Explanation:

The balanced chemical reaction is:

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$

According to stoichiometry :

3 moles of $H_2$ produce = 2 moles of $NH_3$

Thus 0.75 moles of $H_2$ will producee= $\frac{2}{3}\times 0.75=0.50moles$ of $NH_3$

But as percent yield is 30 %, amount of ammonia produced = $\frac{30}{100}\times 0.50moles=0.15moles$

According to ideal gas equation:

$PV=nRT$

P = pressure = 1 atm

V = Volume = ?

n = number of moles = 0.15

R = gas constant = $0.0821Latm/Kmol$

T =temperature = $273K$

$V=\frac{nRT}{P}$

$V=\frac{0.15\times 0.0820 L atm/K mol\times 273K}{1atm}=3.36L$

Thus 3.36 L of ammonia gas is obtained by reacting 0.75 moles of hydrogen with excess nitrogen.

3 0

1 year ago

If the pressure P applied to a gas is increased while the gas is held at a constant temperature, then the volume V of the gas wi

yuradex [85]

Answer:

For these types of questions the equation that we must take into account is that:

T = PxV (where T is the temperature, P is the pressure and V is the volume) this equation is described as we consider that this is the value N and R is 1, therefore it is not necessary to explain them now.

Explanation:

The quoted equation refers to Boyle's Law, in this law we can explain that the volume increases if the pressure decreases and if the temperature also increases, if the pressure increases and the volume decreases this means that the gas is compressing assuming that the temperature is constant

8 0

2 years ago

Read 2 more answers