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?

Answers

Answer 1

Answer:

Potassium hydroxide (KOH) and hydrochloric acid (HCl) react in a beaker. They form potassium chloride (KCl) and water (H2O). This type of reaction is a double replacement reaction wherein the two principal reactants exchange after the reaction. The Cl will combine to the K forming KCl and the H will add to the OH forming H2O.

Answer 2

Answer:

Answer:

B double replacement reaction

Explanation:

took the test

Related Questions

What is the percent by mass of 5.0 g of iron (II) sulfate dissolved in 75.0 grams of water?
a firefighter arrived at a burning building and felt the heat immediately this is due to the thermal energy transfered by
Does a ball ever bounce back to it's drop height?
Who was the 1st to use film in intraoral radiography?
When alvin woke up in the morning it was -9 degrees by the morning it was -2 degrees what is the change in temperatures

A motorist is driving at 20m/s when she sees that a traffic light 200m ahead has just turned red. She knows that this light stays red for 15s, and she wants to reach the light just as it turns green again. It takes her 1.0s to step on the brakes and begin slowing. What is her speed as she reaches the light at the instant it turns green?

Answers

Answer:

8.57 m/s

Explanation:

let's list out available parameters:

Initial velocity, u = 20 m/s

Time = 15 - 1 = 14 s

Distance, s = 200 m

Final velocity = ?

We are assuming a uniformly accelerated motion.

Using one of the equations of motion $s = \left((u+v)/(2)\right)t$

$v = (2s)/(t)-u$

$v=(2*200)/(14)-20$

$v=28.6 - 20$

$v=8.6$ m/s

Final answer:

To stop just as the light turns green, the motorist needs to decelerate in a controlled manner. The effective time to cover the distance after seeing the red light is 14 seconds, disregarding the 1 second it takes to react and press the brakes. Therefore, as she reaches the traffic signal when it turns green, her speed is 0 m/s.

Explanation:

This situation can be approached using the concept of kinematics in Physics. To solve it, we need to consider total time and total distance traveled. The motorist is driving towards the traffic light, which is 200m away, and the light stays green for 15 seconds. However, since it takes her 1 second to step on the brakes, effectively, she has 14 seconds to travel to the light.

Since she starts braking the car, she begins to decelerate. While decelerating, time is the only determinant of the distance covered, not the speed. As she reaches the light, the speed would be zero regardless of the initial speed or distance if the deceleration is constant. So, when the light turns green, her speed will be 0 m/s.

Learn more about Deceleration here:

brainly.com/question/32899180

#SPJ3

An extended period when temperatures are well below average is known as a/an A. drought.
B. ice age.
C. cold wave.
D. draft.

Answers

It would be a cold wave.
Ice ages occur when the temperatures are extremely cold.(long-term)

Depends on the "period". If weeks, months, or years, then it's a cold wave. If centuries, then you've got yourself an ice age.

Does static electricity mean that the charges never move? explain

Answers

No it would be completely wrong to assume that static electricity means that the charges never move. Any kind of electricity always involves the movement of electrons. In reality, static electricity is caused by friction or by rubbing electrons from the surfaces of other materials. So the electrons did not get there by current and thus it is called static electricity.

Mary walked north from her home to Sheila's home, which is 4.0 kilometers away. Then she turned right and walked another 3.0 kilometers to the supermarket, which is 5.0 kilometers from her own home. She walked the total distance in 1.5 hours. What were her average speed and average velocity?

Answers

It would be 5.666667 km per hour.

well her speed and velocity are the same 8 kilometers per hour

The Lamborghini Diablo sports car can accelerate from 0.0 km/hr to 99.2 km/hr in 4.0 seconds. What is the acceleration of this car? Give your answer in units of kilometers per hour/sec.

Answers

The Lamborghini Diablo sports car can accelerate from 0.0 km/hr to 99.2 km/hr in 4.0 seconds. What is the acceleration of this car? Give your answer in units of kilometers per hour/sec. To find the acceleration of the car we have to
1. First determine the suitable formula for this word problem. Which is a. A=vf-vi/t

Given are: Vf=99.2 km/h Vi= 0.0 km/h T= 4.0sec

Solution:
A= 99.2 km/h – 0.0km/h / 4.0 sec
A = 99.2 km/h / 4 sec
A = 2.8 km/h/sec

Answer:

24.8 km per second

Explanation:

A substance that contains more hydroxide ions than hydronium ions in solution could have which pH value

Answers

A substance that contains more hydroxide ions than hydronium ions in solution could have which pH value that would be greater than seven.

What is a Chemical compound?

The chemical compound is a combination of two or more either similar or dissimilar chemical elements

For example, H₂O is a chemical compound made up of two oxygen atoms and a single hydrogen atom.

A material with a pH greater than 7 could have a solution with more hydroxide ions than hydronium ions. As pH levels over 7 signify that a solution is no longer neutral, it has the same number of hydrogen ions as OH ions but more hydroxide ions than hydrogen ions. because it is simpler.

Thus, a substance that contains more hydroxide ions than hydronium ions in solution could have which pH value that would be greater than seven.

Learn more about a chemical compound here,refer to the link given below ;

brainly.com/question/12166462

#SPJ6

A substance that contains more hydroxide ions than hydronium ions in solution could have a pH value that is greater than 7. As pH values greater than 7, indicates that the solution is not neutral anymore and thus possess same number of hydrogen as OH ions, but a greater amount of hydroxide ions than hydrogen ions. As it is more basic.

Other Questions

Which term defines the process of a wave bending as it enters a new medium?A. reflection B. refraction C. destructive bending D. constructive bending

Light travels 300,000,000 m/s, and one year has approximately 32,000,000 seconds. A light year is the distance light travels in one year. State this distance in centimeters.

Two hikers are 15 miles apart and walking toward each other. They meet in 2 hours. Find the rate of each hiker if one hiker walks 2.3 mph faster than the other.

To do work, this truck uses energy stored in chemical fuel and an electrical battery.An illustration of truck with a wide arrow away from it labeled input energy? J and it splits into 3 arrows labeled kinetic energy 400 J, heat 250 J, and friction 150 J. How much total energy does this truck put out? A. 50 J B. 250 J C. 400 J D. 800 J