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Ivan
3 years ago
12

It was suggested that, because of the jump in numbers, from chlorine to potassium, there was an element missing between them. Wh

ich element was discovered between these elements?
Chemistry
1 answer:
DerKrebs [107]3 years ago
5 0

Answer:

Argon

Explanation:

Argon because chlorine is atomic number 17 and potassium is atomic number 19

Argon is between them thank you

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Which planet formed near the sub where the solar system l’s temperatures were very high
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Mars

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Terrestrial or inner planets like Mars and Venus were formed near the Sun where the solar system's temperatures were very high.

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Carbon-12 and carbon-13 are isotopes of carbon.
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Isotopes of an element share the same number of protons but have different numbers of neutrons. Let's use carbon as an example. There are three isotopes of carbon found in nature – carbon-12, carbon-13, and carbon-14. All three have six protons, but their neutron numbers - 6, 7, and 8, respectively - all differ.

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What is the best way to measure the age of the Earth and why? Explain how scientists do this.
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3 0
3 years ago
A piece of iron can change in different ways. How is iron bending different from iron rusting
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7 0
4 years ago
An unknown diprotic acid (H2A) requires 44.391 mL of 0.111 M NaOH to completely neutralize a 0.58 g sample. Calculate the approx
Anna [14]

Answer:

M=235.42g/mol

Explanation:

Hello!

In this case, given this is an acid-base neutralization and we are considering a diprotic acid, we can write the following mole-mole relationship:

2n_{acid}=n_{base}

It means that the moles of acid can be computed given the volume and concentration of NaOH:

n_{acid}=\frac{M_{base}V_{base}}{2} =\frac{0.044391L*0.111mol/L}{2} \\\\n_{acid}=2.46x10^{-4}mol

It means that the approximate molar mass of the acid is:

M=\frac{m_{acid}}{n_{acid}} \\\\M=\frac{m_{acid}}{n_{acid}} =\frac{0.58g}{2.46x10^{-3}mol}\\\\M=235.42g/mol

Best regards!

5 0
3 years ago
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