2 years ago

S this equation balanced and in the lowest form? 4NH3 → 2N2 + 6H2

Chemistry

1 answer:

Mrrafil [7]2 years ago

3 0

No it is not. the balanced equation is 2NH3 = N2 + 3H2

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Substances, such as litmus paper or red cabbage juice, that turn color based on the pH of the solution are called ___.

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Answer:

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Explanation:

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2 years ago

What frequency corresponds to an absorption line at 460 nm?

MAXImum [283]

Answer:

6.52 × 10^14 Hz

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3 years ago

Read 2 more answers

What is the frequency of red light with a wavelength of 645 nm?

marin [14]

Answer:

4.64E14

Explanation:

First convert 645 nm to m = 6.4500E-7m. The equation for finding v with these values is the speed of light/wavelength. so 2.998E8/6.4500E-7m.

so your v or frequency would equal 4.64E14

Fun fact you know this is visible light because the visible light range is within the E14 range.

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2 years ago

How much heat energy in joules is needed to raise the temperature of 500.0 g of water from 10.0°C to 63.5°C

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Answer:

27692.5J

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2 years ago

An isotope has 15 protons, 16 neutrons, and 15 electrons. What is the isotopic notation of the isotope

VikaD [51]

Answer:

$^{31}_{15}P$ is the isotopic notation of the atom

Explanation:

The isotope notation is:

$^a_bX$

<em>Where a is the mass number = Number of protons + Number of neutrons</em>

<em>b is atomic number = Number of protons</em>

The atomic number define the nature of the atom, the element with atomic number = 15 is phosphorus, P:

$^a_bP$

a = 15 protons + 16 neutrons = 31

b = 15

$^{31}_{15}P$ is the isotopic notation of the atom.

3 0

2 years ago