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3 years ago

Which element has 32 protons in its nucleus? phosphorus cobalt germanium sulfur

Chemistry

2 answers:

eduard3 years ago

8 0

<span>Germanium is the element that has 32 protons in its nucleus.</span>

Misha Larkins [42]3 years ago

4 0

The element that has 32 protons in its nucleus is GERMANIUM.

The elements in the periodic table are arranged in the order of increasing atomic number. The atomic number of an element is actually the number of protons in that element. For the question given above, the atomic number of germanium is 32, this implies that it has 32 protons in its nucleus. For a neutral atom, the number of proton and electron in the atom is the same. Thus, germanium also has 32 electrons.

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3 years ago

Which shows an isomer of the molecule below?

blsea [12.9K]

Answer:

Explanation:

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In this case, the isomer of an organic compound is another organic compound having the same molecular formula but different structural formula, thus, the given compound's molecular formula is C₅H₈ since it is an alkyne due to the triple bond. Next, we analyze each option:

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2 years ago

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2 years ago

Read 2 more answers

Which of the following acids is the WEAKEST? The acid is followed by its Ka value.HF, 3.5 × 10^-4HNO2, 4.6 × 10^-4HCN, 4.9 × 10^

Mila [183]

Answer:

HCN

Explanation:

There are several factors that can tell us when an acid is stronger than another, which are the following:

1. The Polarity of the X - H Bond

2. Size of the X atom.

3. Charge on the acid.

4. Oxidation state of the central atom

5. Values of Ka and pKa.

From all of this factors, we can see that the exercise is already giving us values of Ka, and also we have different types of acid, not only with the form H - X

So, we will base the force of an acid by it's pKa value.

The pKa value which is calculated with the expression:

pKa = -logKa

pKa is a value that indicates how strong is the acid you are working with. This value can vary depending on factors such the charge of the acid. I f this charge can be easily distributed in resonance structures, the compound is more acidic, and therefore the pKa value is lower.

The lower the pKa, the more acidic the compound is.

So calculating the pKa on every structure we have:

HF: pKa = -log(3.5x10^-4) = 3.46

HNO2: pKa = -log(4.6x10^-4) = 3.34

HCN: pKa = -log(4.9x10^-10) = 9.31

HCOOH: pKa = -log(1.8x10^-4) = 3.74

HClO2: -log(1.1x10^-2) = 1.96

So according to all this values, we can conclude that the weakest acid is the HCN

4 0

3 years ago