Which is a valid ionic compound?

a: sodide chlorine

b: sodium chloride

c: sodium chloride

d : sodide chloride

The correct answer are (b) and (c).

Explanation:

Ionic compound is a chemical compound. It is a compound of ions. These ions are held together by the electrostatic force. But the compound is neutral overall.

Sodium chloride is an ionic compound. The ions of the sodium chloride compound is sodium ion and chloride ion. Sodium ion is cation while chloride ion is anion.

Cation is positively charged species. Anion is negatively charged species.

Sodide chloride is not an ionic compound.

Therefore, the correct options are (b) and (c).

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .