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# Tag Archives: solution

## What is 75% of the area of a circle with a circumference of 10 units? Round the solution to the nearest square unit.

Answer: 75% of the area of the circle is 6 square units. Step-by-step explanation: Given: Circumference of a circle = 10 units Now we have to find the radius of the circle, then we have to find the area of the circle. Circumference of a circle = 2*π*r     …

## Find the general solution of the given system. dx dt = x + y ? z dy dt = 2y dy dt = y ? z

Find the general solution of the given system. dx dt = x + y ? z dy dt = 2y dy dt = y ? z

## An 8.65-g sample of an unknown group 2a metal hydroxide is dissolved in 85.0 ml of water. an acid-base indicator is added and the resulting solution is titrated with 2.50 m hcl(aq) solution. the indicator changes color signaling that the equivalence point has been reached after 56.9 ml of the hydrochloric acid solution has been added.

Answer; The molar mass of metal hydroxide = 121.66 g/ mole The formula is Sr(OH)2 Explanation; M(OH)2 + 2 HCl = MCl2 + 2 H2O   Moles of the acid = 2.5 x 56.9 / 1000 = 0.14225   Therefore; moles of hydroxide at the eq point = 0.0711 moles …

## Which of the following would be considered a solution ? A salt in the sugar bowl B sugar added to water C oil added to water D any fat-soluble substance mixed with water soluble substance

Which of the following would be considered a solution ? A salt in the sugar bowl B sugar added to water C oil added to water D any fat-soluble substance mixed with water soluble substance

## A 150ml sample of hydrochloric acid completely reacted with 60.0mL of a 0.100 M NaOH solution. What was the original concentration of the HCl solution

A 150ml sample of hydrochloric acid completely reacted with 60.0mL of a 0.100 M NaOH solution. What was the original concentration of the HCl solution

## In a situation where handicapped person can only input data into the computer using a stylus or light pen, which keyboard configuration might be the solution?

In a situation where handicapped person can only input data into the computer using a stylus or light pen, which keyboard configuration might be the solution?

## Given the system of equations, what is the solution? x + 2y = 11 x – 2y = -1 {(-5, -3)} {(1, 1)} {(5, 3)}

Given the system of equations, what is the solution? x + 2y = 11 x – 2y = -1 {(-5, -3)} {(1, 1)} {(5, 3)}

## To determine the pH of a solution using a pH indicator, you need a? A. Color key B. neutral Solution C. Range of acids and bases

To determine the pH of a solution using a pH indicator, you need a? A. Color key B. neutral Solution C. Range of acids and bases

## Which of the following angles is in the solution set of sec2θ – 3secθ – 2 = 0 for 0° ≤ θ < 360°

Which of the following angles is in the solution set of sec2θ – 3secθ – 2 = 0 for 0° ≤ θ < 360°

## What kind of change occurs when salt dissolves in water a.) solution change b.) physical change c.) chemical change d.) substance change

What kind of change occurs when salt dissolves in water a.) solution change b.) physical change c.) chemical change d.) substance change

## Why does changing the PH of a solution affect the ability of enzymes?

Why does changing the PH of a solution affect the ability of enzymes?

## When a solution of LiC2H3O2 reacts with a solution of MgSO4, what is the net ionic equation? No reaction Mg+2 (aq) + C2H3O2- (aq) → Mg(C2H3O2)2 (s) Mg+2 (aq) + 2C2H3O2- (aq) → Mg(C2H3O2)2 (s) 2Li+ (aq) + SO4-2 (aq) → Li2SO4 (s)

Answered by answersmine AT 22/10/2019 – 02:56 AM I think the correct answer would be the first option. When a solution of LiC2H3O2 is mixed  with a solution of MgSO4, no reaction would be observed from the mixture. This is because magnesium cannot replace lithium from the acetate compound. Lithium …

## What value of x is in the solution set of 9(2x + 1)

The answer is:  ” x < -3 ” ._____________________Explanation:_____________________Given: ______________________  ” 9(2x + 1) First , factor out a “9” in the expression on the right-hand side of the inequality: 9x – 18 = 9(x – 2) ; and rewrite the inequality:_____________________9(2x + 1) < 9(x – 2) ; Now, divide EACH SIDE …

## A set of equations is given below: Equation H: y = –x + 2 Equation J: y = 3x – 4 Which of the following steps can be used to find the solution to the set of equations? (4 points) A.–x = 3x – 4 B.–x +2 = 3x C.–x + 2 = 3x – 4 D.–x + 1 = 3x + 2

A set of equations is given below: Equation H: y = –x + 2 Equation J: y = 3x – 4 Which of the following steps can be used to find the solution to the set of equations? (4 points) A.–x = 3x – 4 B.–x +2 = 3x C.–x …

## The minimum and maximum temperature on a cold day in Lollypop Town can be modeled by the equation below:2|x − 6| + 14 = 38What are the minimum and maximum temperatures for this day? A:x= -9,x=21 B:X= -6,X=18 C:X=6,X= -18 D:no solution

The minimum and maximum temperature on a cold day in Lollypop Town can be modeled by the equation below:2|x − 6| + 14 = 38What are the minimum and maximum temperatures for this day? A:x= -9,x=21 B:X= -6,X=18 C:X=6,X= -18 D:no solution

## Consider the following set of equations: Equation M: y = x + 4 Equation P: y = 3x + 6 Which of the following is a step that can be used to find the solution to the set of equations? (4 points) A. x = 3x + 6 B. x + 4 = 3x + 6 C. x + 6 = 3x + 4 D.x = 3x

Consider the following set of equations: Equation M: y = x + 4 Equation P: y = 3x + 6 Which of the following is a step that can be used to find the solution to the set of equations? (4 points) A. x = 3x + 6 B. x …

## f(x) = 4x f(x) = −x + 5 what is the solution

f(x) = 4x f(x) = −x + 5 what is the solution

## What is the solution to this equation 4x+x-15+3-8x=13

What is the solution to this equation 4x+x-15+3-8x=13

## What is the concentration of Sr2+ in a saturated solution of SrSO4? SrSO4 has a Ksp of 3.2 x 10–7

What is the concentration of Sr2+ in a saturated solution of SrSO4? SrSO4 has a Ksp of 3.2 x 10–7

## Consider the following pair of equations: y = –2x + 8 y = x – 1 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form. (5 points)

There is a special kind of substitution which some books call it by comparison. When the two equations are both y=some function of xy=some other function of x, thenwe can substitute the second equation into the first givingsome function of x = some other function of x and start solving. For …

## Do you think it is always safe to pour waste chemicals and solution down the sink with lots of water? Explain.

No, it is not always safe to pour waste chemicals and solution down the sink with lots of water because it could be harmful to the environment. When you pour materials down the drain they either enter a septic system or a municipal sewer system. If the material enter a …

## I NEEED HELP PLEASEEEEEE I WILL RATE BRAINLIEST!!!!!!!!!!!! Select the properly written and balanced equation for the following chemical reaction: Aqueous solutions of sodium hydroxide and iron (III) nitrate react to produce a precipitate of iron (III) hydroxide in an aqueous solution of sodium nitrate. ——-3NaOH (aq) + Fe(NO3)3 (aq) Fe(OH)3 (s) + 3NaNO3 (aq) NaOH (aq) + FeNO3 (aq) FeOH (s) + NaNO3 (aq) NaOH (aq) + Fe(NO3)3 (aq) FeOH3 (s) + NaNO3 (aq) 3NaOH (aq) + FeNO3 (aq) FeOH (s) + 3NaNO3 (aq) I believe that it is the first choice but I am not sure….

I NEEED HELP PLEASEEEEEE I WILL RATE BRAINLIEST!!!!!!!!!!!! Select the properly written and balanced equation for the following chemical reaction: Aqueous solutions of sodium hydroxide and iron (III) nitrate react to produce a precipitate of iron (III) hydroxide in an aqueous solution of sodium nitrate. ——-3NaOH (aq) + Fe(NO3)3 (aq) …

## What is the colligative property that means a solution typically has a measurably higher boiling point than a pure solvent alone? A) osmotic pressure B) boiling point elevation C) boiling point alleviation D) vapor-pressure lowering

What is the colligative property that means a solution typically has a measurably higher boiling point than a pure solvent alone? A) osmotic pressure B) boiling point elevation C) boiling point alleviation D) vapor-pressure lowering