In a chemical compound, would you expect an oxide ion to be joined with one atom of calcium or one atom of potassium? Why?

Answers

Answer 1

Answer:

I know what you're asking but I don't think the question is stated properly. Technically, an atom will not join with an "oxide" ion; i.e., the oxide ion is an atom of oxygen to which two electrons have been added. An oxide ion will add to 2 K ions or 1 Ca ion. The K ion has lost just one electron so it takes two of them to equal the 2- charge on the oxide ion whereas the Ca ion has lost two electrons and it takes only one of them to equal the charge on the oxide ion.

Related Questions

Your teacher placed a drop of food coloring in a cup of water. the color slowly mixed into the water without being stirred. what does this tell you about water molecules?
What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?
Which list of nuclear emissions is arranged in order from the greatest penetrating power to the least penetrating power?(1) alpha particle, beta particle, gamma ray(2) alpha particle, gamma ray, beta particle(3) gamma ray, alpha particle, beta particle(4) gamma ray, beta particle, alpha particle
Argon has three naturally occurring isotopes: argon-36, argon-38, and argon-40. Based on argon's reported atomic mass, which isotope do you think is the most abundant in nature? Explain.
Why is large scale nuclear fission a rare phenomenon on earth ?

The rate law for a hypothetical reaction is rate = k [A]2. When the concentration is 0.10 moles/liter, the rate is 2.7 × 10-5 M*s-1. What is the value of k?

Answers

Answer:The value of rate constant is $2.7* 10^(-3) Ls^(-1) mol^(-1)$ .

Explanation:

Concentration of [A]=0.10 mol/L

The rate of the reaction = $2.7* 10^(-5) M/s$

Rate constant = k

The given rate law:

$R=k[A]^2$

$2.7* 10^(-5) M/s=k* (0.10 mol/L)^2$

$k=(2.7* 10^(-5) mol/L s)/(0.10 mol/L* 0.10 mol/L)=2.7* 10^(-3) Ls^(-1) mol^(-1)$

The value of rate constant is $2.7* 10^(-3) Ls^(-1) mol^(-1)$ .

Given:

rate = k [A]2

concentration is 0.10 moles/liter

rate is 2.7 × 10-5 M*s-1

Required:

Value of k

Solution:

rate = k [A]2

2.7 × 10-5 M*s-1 = k (0.10 moles/liter)^2

k = 2.7 x 10^-3 liter per mole per second

Which of the following reactant pairs will not react together to produce a reaction? Rb + CaCl2 K + H2O Al + CoPO4 Ni + FeO

Answers

If you guys are still wondering which one is right, the answer is Ni + FeO

i think it might be Ni + FeO

As the elements in Group 17 are considered in order of increasing atomic number, the chemical reactivity of each successive element(1) decreases
(2) increases
(3) remains the same

Answers

As the elements in Group 17 are considered in order of increasing atomic number, the chemical reactivity of each successive element decreases.

What is reactivity?

The impetus for a chemical substance to undergo a chemical reaction, either by itself or with other materials, with an ease and overall release of energy is referred to as reactivity.

Group 17 are the halogens group and on moving from top to bottom across that group atomic size of the atoms increases due to the increase in the number of energy shells. As a result of which it decreases the affect of nuclear attraction force to the outer most valence shell decreases.

Hence, reactivity decreases.

To know more about reactivity, visit the below link:

brainly.com/question/11865442

#SPJ2

It decreases, because there is less attraction between the outermost shell and the nucleus - called the shielding effect - meaning it's harder for the element to attract the last electron

True or false. The synthesis of giant molecules from components of repeating units is polymerization.

Answers

True due to the fact that polymers are a giant chain of monomers

Water molecules attract to one another to form what kind of bonds?

Answers

The bond is hydrogen bond, that happens with a (H -- O) bond.

In real life, a given system can approach equilibrium from different starting points but will still have the same equilibrium constant. How is this possible? Explain your answer in complete sentences.

Answers

In real life, a given system can approach equilibrium from different starting points but will still have the same equilibrium constant. It is because the rate of reaction for product formation and reactants forming is the same. It came to a point where their reaction attains equilibrium.

Other Questions

Which of the following is always involved in a scientific inquiry? A. conducting experiments based on scientific questions B. guessing what would happen instead of doing experiments C. knowing the correct answer before you start D. conducting surveys to ask people's opinions on various subjects

What is radioactivity.

Comprised of protons, neutrons, and electrons.

If energy can neither be created nor destroyed in a chemical reaction, what can happen to the energy