Potassium hydroxide (koh) and hydrochloric acid (hcl) react in a beaker. they form potassium chloride (kcl) and water (h2o). what type of reaction is this? synthesis reaction
double replacement reaction
single replacement reaction
decomposition reaction

double replacement reaction

Explanation:

1. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.

Example:  

2. Double displacement reaction is one in which exchange of ions take place. Neutralization is a special type of double displacement where acid reacts with base to form salt and water.

Example:

3. Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.

Example:

4. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

Example:

from

explanation:

wind is defined by the direction it blows from.   for example, a wind blowing from north to south is called a northerly wind.

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 .