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iragen [17]
2 years ago
5

Consider the elements carbon, C and silicon, Si.

Chemistry
1 answer:
Aneli [31]2 years ago
3 0

Answer:

and

Explanation:

All the carbon group atoms, having four valence electrons, form covalent bonds with nonmetal atoms; carbon and silicon cannot lose or gain electrons to form free ions, whereas germanium, tin, and lead do form metallic ions but only with two positive charges

the similarities is that Both carbon and silicon commonly form compounds, easily sharing electrons with other elements. Carbon will make multiple bonds with other carbon molecules by forming single, double and triple covalent bonds. ... Carbon and silicon are often combined, with carbon serving as silicon's backbone.

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D. is the right answer
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The ph of a fruit juice is 2.2 . find the hydronium ion​ concentration, left bracket upper h 3 upper o superscript plus right br
patriot [66]

Answer:

[H₃O⁺] = 6.31 x 10⁻³ M.

Explanation:

  • To find the hydronium ion concentration [H₃O⁺], we can use the relation:

<em>pH = - log[H₃O⁺].</em>

<em></em>

∴ 2.2 = - log[H₃O⁺].

∴ log[H₃O⁺] = - 2.2

<em>∴  [H₃O⁺] = 6.31 x 10⁻³ M.</em>

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3 years ago
How can liquid reach higher temperatures in a pressure cooker than in an unsealed pot?
Alex_Xolod [135]

Answer:

the heat is circulating in the same spot rather than airing out into the open

Explanation:

4 0
3 years ago
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What describes the basis of the band theory of metallic bonding
Artist 52 [7]

1. Metallic bond is a type of chemical bond.

2. Metallic bond is formed between electrons and positively charged metal ions.

3. Metallic radius is defined as one-half of the distance between the two adjacent metal ions.

4. Metallic bond increace electrical and thermal conductivity.

5. Metals conduct heat, because when free moving electrons gain energy (heat) they vibrate more quickly and can move around.

3 0
3 years ago
A closed tank contains pure nitrogen gas at a pressure of 855
Maslowich

Answer:

If the tank were heated to 1253ºC, the pressure of the tank would be 40,734.41 mmHg.

Explanation:

Given that a closed tank contains pure nitrogen gas at a pressure of 855 mmHg and a temperature of 26.3ºC, to determine what the pressure would be if the tank were heated to 1253 ° C the following calculation must be performed:

26.3 = 855

1.253 = X

(1,253 x 855) / 26.3 = X

1,071,315 / 26.3 = X

40,734.41 = X

Therefore, if the tank were heated to 1253ºC, the pressure of the tank would be 40,734.41 mmHg.

8 0
2 years ago
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