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N76 [4]
3 years ago
6

Which chemical or physical change is an endothermic process? the burning of a candle the condensing of gaseous water on a glass

filled with a cold liquid the melting of an ice cube the rusting of an old car.
SAT
1 answer:
kaheart [24]3 years ago
4 0

Answer: C. The melting of an ice cube

Explanation: Just trust!

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The current in two lightbuibs wired in a series circuit
Harlamova29_29 [7]
<span> The current is inversely proportional to the resistance. I = V / R.

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7 0
3 years ago
What region of the spectrum best corresponds to light with a wavelength equal to.
KonstantinChe [14]

The region of the spectrum that best corresponds to light with a wavelength equal to;

1) The diameter of a hydrogen atom is; X-ray

2) The width of your pinky finger; microwaves.

3) The size of a virus; X-ray and Ultraviolet rays.

<h3>Electromagnetic spectrum</h3>
  • From online tables, the diameter of an hydrogen atom is approximately 1 × 10^(-10) m but according to electromagnetic spectrum, any wavelength between 10^(-8) m and 10^(-12) m is an x-ray.

  • From online tables, width of your pinky finger is 1.06 × 10^(-2) m but according to the electromagnetic spectrum the range between 1 and 10^(-3) m corresponds to microwave.

  • The size of a virus has the range from 2 × 10^(-9) m to 4 × 10^(-7) m. This Range falls into x-ray or ultraviolet rays.

The complete question is;

What region of the spectrum best corresponds to light with a wavelength equal to:

(1) the diameter of a hydrogen atom

(2) the width of your pinky finger

(3) the size of a virus

Choices:

(A) radio

(B) mircowave

(C) infrared

(D) visible light

(E) gamma ray

(F) x-ray

(G) ultraviolet

Read more about Wavelength at; brainly.com/question/24790737

5 0
3 years ago
what is the temperature of an 11.2-l sample of carbon monoxide, co, at 744 torr if it occupies 13.3 l at 55 °c and 744 torr?
Genrish500 [490]

The temperature of an 11.2 L sample of carbon monoxide, CO, at 744 torr is 276.21° K or 3.06° C

For given question,

A sample of carbon monoxide (CO) occupies 13.3 l at 55 °c and 744 torr

We know that Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas.

This law says that when the amount of gas and pressure are constant, the quotient between the volume and the temperature will always have the same value:

V/T = k

Studying two different states, an initial state 1 and a final state 2, it is satisfied:

\frac{V1}{T1} =\frac{V2}{T2}

In this case, you can apply Charles's law because it can be seen that the pressure is constant, with a value of 744 torr at the beginning and end of the analysis. Then, you know:

V₁ = 11.2 L

T₁ = ?

V₂ = 13.3 L

T₂ = 55° C

    = 328° K

Replacing in Charles's law:

\frac{11.2}{T1} =\frac{13.3}{328}

We solve above proportion to find the value of T1

⇒ 11.2 × 328 = T1 × 13.3

⇒ 3673.6 = T1 × 13.3

⇒ T1 = 276.21° K

⇒ T1 = 3.06° C

Therefore, the temperature of an 11.2 L sample of carbon monoxide, CO, at 744 torr is 276.21° K or 3.06° C

Learn more about the Charles's law here:

brainly.com/question/16927784

#SPJ4

8 0
2 years ago
Determine the ratio of offspring with the described trait to the total number of offspring:unattached earlobes and cleft chin :u
Law Incorporation [45]
Unattached earlobes and cleft chin : 9
Unattached earlobes and no cleft : 3
Attached earlobes and cleft chin : 3
Attached earlobes and no cleft :1
4 0
2 years ago
M.e.e.t. g.oo.g.l.e com mxi-cijm-jeh
grigory [225]

Answer:

wut

Explanation:

6 0
3 years ago
Read 2 more answers
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