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3 years ago

How does a smoke detector utilize radiation?

Chemistry

1 answer:

Schach [20]3 years ago

5 0

D. Beta radiation ionizes the air. When smoke
interacts with the ionized particles it causes the
alarm to sound.

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What are the 3 laws of motion?

laiz [17]

Answer:

1.Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

2.The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma.

3.For every action there is an equal and opposite reaction.

Hope this Helps!

Pls Mark Brainliest I just need one more!

4 0

3 years ago

Read 2 more answers

Which of these compounds is not a molecule? A) MgO B)SO2 C)CO D) CS2

DerKrebs [107]

A) MgO
Hope that helps

5 0

3 years ago

What would be the freezing point of a solution that has a molality of 1.324 m which was prepared by dissolving biphenyl (C12H10)

lbvjy [14]

The freezing point of a 1.324 m solution, prepared by dissolving biphenyl into naphthalene, is 71.12 ° C.

A solution is prepared by dissolving biphenyl into naphthalene. We can calculate the freezing point depression (ΔT) for naphthalene using the following expression.

$\Delta T = i \times Kf \times m = 1 \times 6.90 \°C/m \times 1.324m = 9.14 \°C$

where,

i: van 't Hoff factor (1 for non-electrolytes)
Kf: cryoscopic constant
m: molality

The normal freezing point of naphthalene is 80.26 °C. The freezing point of the solution is:

$T = 80.26 \° C - 9.14 \° C = 71.12 \° C$

The freezing point of a 1.324 m solution, prepared by dissolving biphenyl into naphthalene, is 71.12 ° C.

Learn more: brainly.com/question/2292439

3 0

3 years ago

When ammonium carbonate is heated, water, ammonia, and carbon dioxide are produced. what type of chemical reaction is occurring?

Delicious77 [7]

(NH4)2CO3----> H2O +2NH3+CO2
decomposition

5 0

3 years ago

Convert the scientific notation to a decimal number. Type the correct answer in the box. 4 × 10-5 cm = cm

MakcuM [25]

Answer:

$4 * 10^{-5}cm = 0.00004cm$

Explanation:

Given

$4 * 10^{-5}cm = [\ ]cm$

Required

Solve

Apply law of indices

$4 * \frac{1}{10^5}cm = [\ ]cm$

Evaluate 10^5

$4 * \frac{1}{100000}cm = [\ ]cm$

$4 * 0.00001cm = [\ ]cm$

$0.00004cm = [\ ]cm$

Hence:

$4 * 10^{-5}cm = 0.00004cm$

3 0

3 years ago