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Vlad1618 [11]
3 years ago
13

Explain, in terms of particle behavior why smoke particles cause the detector alarm to sound

Chemistry
2 answers:
Rudik [331]3 years ago
8 0
Explain in terms of particle behavior why smoke particles cause the detector alarm to sound


Smoke detectors are of many types but they rely on the principle of diffusion of smoke. Diffusion is the movement of particles from a region of high concentration to a region of lower concentration. Smoke particles move in what is known as Brownian motion.
egoroff_w [7]3 years ago
5 0
Americium-241 is used in a smoke detector because of its decay mechanism. As A-241 decays, it releases energy that temporarily ionizes the oxygen present in the air. This ionization allows the air to conduct an electrical charge from the battery delivery to the alarm between particles, keeping it from sounding. When smoke enters the alarm, the oxygen concentration drops as smoke replaces the molecules in the air. Smoke cannot be ionized, and the current to the alarm drops, causing the alarm to begin ringing.
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What did you include in your response?<br>check all that apply ​
erma4kov [3.2K]

Answer: i don't know

Explanation:

u gave no information on what you're asking

6 0
3 years ago
What is the weighted average of a nail in the sample data given?
Natalka [10]

The weighted average of the nail in accordance with the given data is 11.176g.

<h3>How to calculate weighted average?</h3>

Weighted average is an arithmetic mean of values biased according to agreed weightings.

The weighted average of the nail in the image above can be calculated by multiplying the decimal abundance with the mass of the nail, then summed up as follows;

Weighted average = (decimal abundance × mass 1) + (decimal abundance × mass 2)

Weighted average = (0.12 × 3.3) + (0.88 × 12.25)

Weighted average = 0.396 + 10.78

Weighted average = 11.176g

Therefore, 11.176g is the weighted average of the nail

Learn more about weighted average at: brainly.com/question/28042295

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5 0
1 year ago
Given the following Fischer projection: Fischer projection for an entantiomer of 2-bromo-2,3-dihydroxypropanal with the bromine
harina [27]

Answer:

Explanation:

Stereoisomers are two or more atoms that  have the same bonding order of atoms but there is a difference  spatial arrangement of  the  atoms in space.

A plane of symmetry divides a molecule into two equal halves.

A chiral stereoisomer are not superimposed on a mirror image , Hence they do not posses a plane of symmetry.

As a result to that. these non-superimposable mirror images are said to be Enantiomers.

However, a Fischer Projection emanates from a two - dimensional figure which is used for presenting a three - dimensional organic molecules.

From the given question;

Fischer projection for an enantiomer of 2-bromo-2,3-dihydroxypropanal with the bromine oriented horizontally to the left and the hydroxide group oriented horizontally to the right.

we can sketch the way the enantiomer of 2-bromo-2,3-dihydroxypropanal can  be seen like the one shown below:

              CH₂OH

                   |

                   |

                   |

Br -------------|----------------OH

                   |

                   |

                   |

                 CHO

The objective of this question is to drawn the perspective formula of the molecule.

So , from the attached file below; we can see the perspective formula of the molecule in a well structured 3-D format.

5 0
3 years ago
Quiz time!
kykrilka [37]

potassium belongs to group IA of the periodic table.

7 0
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Step2247 [10]

Answer:

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Explanation:

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