3 years ago

Which quantity does a light-year measure? A) distance B) speed C) time D) volume

Chemistry

2 answers:

tatuchka [14]3 years ago

6 0

Answer:

speed

Explanation:

Olegator [25]3 years ago

3 0

Answer:

distance

Explanation:

a light year is the distance light travels in a year. its a way to describe incredibly large distances as you could imagine.

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Convert 0.04 HL to L.

aliina [53]

Answer:

4 liters brainliest Idc rn

Explanation:

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3 years ago

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At what pressure would 11.1 moles of a gas occupy 44.8 L at 300 K?

faltersainse [42]

Answer:

$P=6.10atm$

Explanation:

Hello,

In this case, we can study the ideal gas equation that relates temperature, volume, pressure and moles as shown below:

$PV=nRT$

Thus, since we are asked to compute the pressure y simply solve for it as follows:

$P=\frac{nRT}{V}=\frac{11.1mol*0.082\frac{atm*L}{mol*K}*300K}{44.8L}\\ \\P=6.10atm$

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3 years ago

A copper atom has 29 protons and 36 neutrons. What is the mass number of this atom in amu?

Mamont248 [21]

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2 years ago

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kirill [66]

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3 years ago

Use the given relationship to calculate the ionization energy of a thallium atom, given that radiation of 58.4 nm produces elect

Elenna [48]

The ionization energy is 1 × 10^-18 J

<h3>What is ionization energy?</h3>

The ionization energy is the energy required to remove an electron from an atom.

We have the following information;

wavelength of the photon = 58.4 nm

Speed of the electron = 2310 × 10^3 m/s

Since;

hv = I + 1/2mv^2

v = c/λ

hc/λ = I + 1/2mv^2

I = hc/λ - 1/2mv^2

I = (6.6 × 10^-34 × 3 × 10^8/58.4 × 10^-9) - (1/2 × 9.11 × 10^-31 × (2310 × 10^3)^2)

I = 1 × 10^-18 J

Learn more about ionization energy: brainly.com/question/16243729

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2 years ago