All categories

3 years ago

Which substance contains particles held together by metallic bonds? A) N2(s) B) Ni(s) C) I2(s) D) Ne(s)

Chemistry

1 answer:

Katarina [22]3 years ago

7 0

Answer:

B) Ni(s)

Explanation:

The question inquires which of the substances listed in the options is composed of the metallic bond. This means that we have to carefully consider the options and identify which of them is a metal. Clearly, only Ni(s) is a metal.

Metallic bonds result from the electrostatic attraction between metal cations and delocalized electrons. The nature of metallic bonding accounts for many of the physical properties of metals, such as conductivity and malleability(Khan Academy).

You might be interested in

The enthalpy of solution (∆H) of KOH is -57.6 kJ/mol. If 3.66 g KOH is dissolved in enough water to make a 150.0 mL solution, wh

Wewaii [24]

When 3.66 g of KOH (∆Hsol = -57.6 kJ/mol) is dissolved in 150.0 mL of solution, it causes a temperature change of 5.87 °C.

The enthalpy of solution of KOH is -57.6 kJ/mol. We can calculate the heat released by the solution (Qr) of 3.66 g of KOH considering that the molar mass of KOH is 56.11 g/mol.

$3.66g \times \frac{1mol}{56.11g} \times \frac{(-57.6kJ)}{mol} = -3.76 kJ$

According to the law of conservation of energy, the sum of the heat released by the solution of KOH (Qr) and the heat absorbed by the solution (Qa) is zero.

$Qr+Qa = 0\\\\Qa = -Qr = 3.76 kJ$

150.0 mL of solution with a density of 1.02 g/mL were prepared. The mass (m) of the solution is:

$150.0 mL \times \frac{1.02g}{mL} = 153 g$

Given the specific heat capacity of the solution (c) is 4.184 J/g･°C, we can calculate the change in the temperature (ΔT) of the solution using the following expression.

$Qa = c \times m \times \Delta T\\\\\Delta T = \frac{Qa}{c \times m} = \frac{3.76 \times 10^{3}J }{\frac{4.184J}{g.\° C } \times 153g} = 5.87 \° C$

When 3.66 g of KOH (∆Hsol = -57.6 kJ/mol) is dissolved in 150.0 mL of solution, it causes a temperature change of 5.87 °C.

Learn more: brainly.com/question/4400908

7 0

2 years ago

PLS HELP!! WILL MARK BRAINLIEST TO RIGHT ANSWER!!!

andre [41]

Answer:

1. A) Its very dense

2. D) weight depends on gravity and mass is constant

3. C) Quart

4. D) 125 cubic cm

5. B) Attribute

Explanation:

8 0

3 years ago

How does the electron structure of atoms change when they form chemical bonds

andriy [413]

For ionic bond
The metal atom will lose electrons to form cations and the non metal atom will gain electron.egNaCl

3 0

3 years ago

What is true about tRNA's: O they vary widely in size O they can covalently bond to more than one type of amino acid 0 they do n

Gekata [30.6K]

Answer:

Option (3).

Explanation:

Transfer RNA or t RNA's is one of the type of the RNA molecule necessary for the synthesis of protein translation. This RNA works as a adaptor molecule and contains 70 to 90 nucleotide in length.

Transfer RNA contains an anti codon loop. This anti codon loop has the ability to recognize an mRNA codon and result in the formation of protein product.

Thus, the correct answer is option (3).

8 0

3 years ago

If we know the specific heat of a material, can we determine how much heat is released under a given set of circumstances?

Alekssandra [29.7K]

Answer:

Yes

Explanation:

literally have no idea i just got it right on ck-12 lol

6 0

3 years ago