Aqueous carbon dioxide, CO2 (aq), reacts with water forming carbonic acid, H2CO3 (aq). Carbonic acid may loose protons to form bicarbonate, HCO3- , and carbonate, CO32-. In this case the proton is liberated to the water, decreasing pH. The complex chemical equilibria are described using two acid equilibrium equations.

PLS MARK AS BRAINLIEST

8 0

3 years ago

When a Select Case statement executes, the value of the test expression is compared with the values that follow each of the ____

goldenfox [79]

Answer:

Case

Explanation:

In Computer programming, a variable can be defined as a placeholder or container for holding a piece of information that can be modified or edited.

Basically, variable stores information which is passed from the location of the method call directly to the method that is called by the program.

For example, they can serve as a model for a function; when used as an input, such as for passing a value to a function and when used as an output, such as for retrieving a value from the same function. Therefore, when you create variables in a function, you can can set the values for their parameters.

A Select Case statement can be defined as a conditional statement that avails software developers or programmers the ability to test a variable by comparing it with a list of values.

In a Select Case statement, each variable is referred to as a Case.

Generally, when a Select Case statement executes, the value of the test expression is compared with the values that follow each of the Case keywords.

7 0

3 years ago

Assume that a gallon of paint covers about 350 square feet of wall space. Create anapplication with a main() method that prompts

Elena-2011 [213]

Answer:

import java.util.Scanner;

public class PaintClculator {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

System.out.println("Enter Values for length, width, and height of the room");

double length = in.nextDouble();

double width = in.nextDouble();

double height = in.nextDouble();

double wallArea = calculateWallArea(length,width,height);

double noGallons = calculatePaint(wallArea);

double price = price(noGallons);

System.out.println("Price is: "+ price);

}

// Creating Method to Calculate Wall Area

public static double calculateWallArea( double length, double width, double height){

// formular for the surface area of a room Area=2*length*heigth+2*width*height+lenth*width

double Area = 2*length*height+2*width*height+length*width;

System.out.println("Wall Area: "+Area);

return Area;

}

//Creating method to calculate amount of paint

public static double calculatePaint(double Area){

double noGallons = Area/350;

System.out.println("Number of gallons: "+noGallons);

return noGallons;

}

// Creating Method Calculate Price

public static double price(double noGallons){

return noGallons*32;

}

Explanation

Created Three Methods in all; calculateWallArea(), calculatePaint(), and price()
Method calculateWallArea() calculates area based on this formula Area=2*length*heigth+2*width*height+lenth*width
The value of Area is passed to method calculatePaint() Which calculates the number of gallons required to cover the area given that one gallon covers 350 wall space
Method price() calculates and dis[plays the price by calling method calculatePaint() that returns number of gallons. since one gallon is 32$

3 0

3 years ago