All categories

4 years ago

Why does a candle relight if a match is held above the wick just after the flame is blown out?

Chemistry

1 answer:

shutvik [7]4 years ago

5 0

Answer with Explanation:

A candle relights when a match is held above the wick because its trail of smoke still contains some of the wax. When candles are burned, the heat of the flame turns the the wax (which is originally solid) into liquid (commonly near the wick) and then evaporates as gas. The vaporized wax actually protect the wick and this is the reason why it is not burned. So, when you put off a candle, the vaporized wax is still present near the wick. This, remember, holds heat and light energy. Thus, this explains why the candle can be relighted once you hold a match above the wick. It then allows the match to ignite.

Thus, this explains the answer.

You might be interested in

An unknown element is determined to have 22 neutrons and a mass number of 40.

Amiraneli [1.4K]

It’s Calcium hope that helps!

7 0

3 years ago

How many mL of a 6 M NaOH stock solution is needed in order to prepare 500 mL of a 0.2 M NaOH solution?

WITCHER [35]

Answer:

The right answer is "16.67 mL".

Explanation:

Given:

Molarity of NaOH,

$M_1=6 \ M$

$M_2=0.2 \ M$

Volume of NaOH,

$V_1=V \ mL$

$V_2=500 \ mL$

As we know, the equation,

⇒ $M_1V_1=M_2V_2$

On putting the values, we get

⇒ $6\times V=0.2\times 500$

⇒ $6\times V=100$

⇒ $V=\frac{100}{6}$

⇒ $=16.67 \ mL$

3 0

3 years ago

What can we learn about past climate changes from ice cores?

Mice21 [21]

Fossil fuels about into Earth ice age time

6 0

4 years ago

7. List things that have LOTS of kinetic energy, and tell why.

vlabodo [156]

Answers: -

For high kinetic energy, the object must have high speed of movement.

1) An airplane has a lot of kinetic energy. Airplanes move at high speed and thus posses a lot of kinetic energy.

2) A bullet from a gun has a lot of kinetic energy due to the high speed of bullet.

3) A formula one car moving at high speeds have a lot of kinetic energy.

4) A train moving at high speed has lots of kinetic energy.

5) An asteroid has a lot of kinetic energy due to it's high speed.

6) A roller coaster moving at high speeds have a lot of kinetic energy.

7) A missile fired from a fighter plane has lots of kinetic energy.

7 0

4 years ago

2-11 Ozone molecules are constantly formed and destroyed in the atmosphere. A

evablogger [386]

Answer:

The diagram shows oxygen, O₂, which consists of two atoms of oxygen in the stratosphere, which are the two beings holding hands, forming a couple being broken up by the intense ultraviolet radiation of the Sun, such that the couple closest to the Sun are the ones that were broken into two O, atoms.

After being broken, the two beings (oxygen atoms), become free to move as they please, making them able to move faster than when they were still a couple. However, due to the likeness for their fellow beings, each of the single O beings rushed to meet the other two still coupled O₂ beings, whereby one O being rushing to meet one O₂ couple each, to form O₃ which is a new group consisting of three beings holding hands known as Ozone

Note, that O stands for atomic oxygen gas

O₂ stands for oxygen gas

O₃ stands for ozone gas

Explanation:

4 0

4 years ago