Which pair of elements will form an ionic bond?N and O
K and Br
C and Cl
Fe and Ni

Answers

Answer 1

Answer: K and Br can form an ionic bond. Since potassium is a metal (has a small electronegativity) and bromine is a nonmetal (has a large electronegativity), potassium can give an electron to bromine creating potassium bromide.

I hope this helps. Let me know if anything is unclear.

Answer 2

Answer:

Final answer:

Ionic bonds are formed between a metal and a nonmetal. Among the pairs given, K and Br satisfy these conditions and will form an ionic bond.

Explanation:

The question is asking about ionic bonds, which are formed when one atom donates an electron to another atom. This occurs between a metal and a nonmetal due to their differences in electronegativity.

Looking at the options, N and O are both nonmetals, C and Cl are also both nonmetals, and Fe and Ni are both metals, so they would not form ionic bonds. On the other hand, K (a metal) and Br (a nonmetal) have a difference in electronegativity such that K can donate an electron to Br, forming an ionic bond. Therefore, the pair that would form an ionic bond is K and Br.

Learn more about Ionic Bonds here:

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Based on the Periodic Table, explain why Na and Khave similar chemical properties

Answers

The Group 1 elements, which include lithium (Li), sodium (Na) and potassium (K) are also known as the alkali metals. They all have one electron in the outer shell and so they have similar properties.

Explain, in terms of atomic structure, why the radius of an Na atom is larger than the radius of an Na+ ion.

Answers

In a Naatom, there are 11 protons controlling 11 electrons by electrostatic attraction. In Na+ there are 11 protons controlling 10 electrons (you lost one to give Na+), so they can pull them in tighter!!

Which of the following would you expect to have the highest value for entropy? CO2 (s)

H2O (s)

CO2 (g)

H2O (l)

Answers

Chemistry cool

CO2 (g) is your answer

hey there i see you need help well i am here to do just that

CO2 (g) is the correct answer

hope this helps

A sample of aluminum metal absorbs 8.32 J of heat, upon which the temperature of the sample increases from 23.2 degrees C to 30.5 degrees C. Since the specific heat capacity of aluminum is 0.90 J/g-K, the mass of the sample is what in grams?

Answers

Given:

8.32 J of heat

from 23.2 degrees C to 30.5 degrees C

heat capacity of aluminum is 0.90 J/g-K

Required:

m in grams

Solution:

H = mCpT

(8.32 J) = m(0.90 J/g-K)(30.5 – 23.2)K

m = 1.27g

What is the difference and synthetic fibers ?

Answers

Synthetic fabrics are textiles man – made rather than natural fibers. Examples are acrylic, nylon, rayon, acetate, spandex, lastex and Kevlar. It is made by joining the monomers into polymers by the process known as polymerization.

Which compound listed below has the largest molar mass?Ca(OH)2
H20
CaCl2
NH3