I need help plz....

Chemistry

2 answers:

e-lub [12.9K]3 years ago

8 0

Answer:

a. young.........................

noname [10]3 years ago

3 0

Young / Grassy

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In what two ways can an object possess energy?

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Explanation:

An object can possess energy in tow ways by it's motion or position

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A deuteron, 21H, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. The plasma of deuterons in a n

VikaD [51]

Answer:

$1.9 \times 10^{6}\text{ m/s}$

Explanation:

$v_{\text{rms}} = \sqrt{\dfrac{3RT}{M}$

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T = 3.02 × 10⁸ K

M = 2.013 × 10⁻³ kg/mol

Calculation:

$v_{\text{rms}} = \sqrt{\dfrac{3\times 8.314\text{ J}\cdot\text{K}^{-1} \text{mol}^{-1} \times 3.02 \times 10^{8} \text{ K}}{2.014 \times 10^{-3} \text{ kg}\cdot \text{mol}^{-1}}}\\\\\\=\sqrt{3.740\times 10^{12} \text{ (m/s)}^{2}} = 1.9 \times 10^{6}\text{ m/s}$

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What is the correct order of decreasing size of the following ions?

Alja [10]

Answer:

C) P3– > Cl– > K+ > Ca2+

Explanation:

Ionic radius can be defined as the distance between the nucleus and the electron in the outermost shell of atom in its ionic state. When an atom looses an electrons(Cation) its ionic radius decreases, whereas when an atom gains an electron(anion), its ionic radius increases.

Among the given ions the ionic radius of

$P^{-3} =212 pm$