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siniylev [52]
3 years ago
5

What is the element with period 2 group 14

Chemistry
2 answers:
Ghella [55]3 years ago
7 0

Answer:

Carbon

Explanation:

bija089 [108]3 years ago
6 0
The element name is carbon
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Which group of the periodic table contains two elements that are gases at stp?
Svetradugi [14.3K]
The group is might be labeled as VIIB or VIIA.
3 0
2 years ago
As discussed in class, the Fischer esterification reactants and products are at equilibrium. How was the equilibrium of the reac
german

Answer:

See explanation

Explanation:

The particular reactants in the Fischer esterification reaction were not stated.

Generally, a Fischer esterification is a reaction that proceeds as follows;

RCOOH + R'OH ⇄RCOOR' + H2O

This reaction occurs in the presence of an acid catalyst.

We can shift the equilibrium of this reaction towards the products side in two ways;

I) use of a large excess of either of the reactants

ii) removal of one of the products as it is formed.

Any of these methods shifts the equilibrium of the Fischer esterification reaction towards the products side.

4 0
3 years ago
The minimum energy required to break the oxygen-oxygen bond in oxygen is 495 kJ/mol. What is the longest wavelength of radiation
Sergeeva-Olga [200]

Answer:

241 nm, it is UV light range

Explanation:

The minimum energy needed required to break the oxygen-oxygen bond = 495 kJ/mol

Energy needed for 1 molecule of oxygen = 495 × 10³ J / avogadro's constant = 495 × 10³ J  / ( 6.02 × 10²³) = 8.223 × 10⁻¹⁹ J

Energy = hv

where h = Planck constant = 6.626 × 10 ⁻³⁴ m²kg/s and v = frequency

c speed of light = vλ

c / λ = v

E = hc / λ

λ  = hc / E = (6.626 × 10 ⁻³⁴ m²kg/s × 3.0 × 10 ⁸ m/s) / (8.223 × 10⁻¹⁹ J)  = 2.41 × 10⁻⁷m = 241 nm

UV light wavelength is between 400 nm - 10 nm

4 0
2 years ago
Desperate Please Hurry
Zepler [3.9K]

Answer:

Explanation:

Are there any awnser choices?

8 0
2 years ago
Read 2 more answers
The density of ice is 917 kg/m3. The density of salt water is 1029 kg/m3. A mass of ice is 2.55 x 1013 kg. Calculate the volume
Ksju [112]

Answer:

Volume of salt water, V_{sw} = 247.74 km^3

Explanation:

Density of Ice, \rho_{ice} = 917 kg/m^3

Density of salt water, \rho_{sw} = 1029 kg/m^3

Volume of ice, V_{ice} = 278 km^3

Volume of salt water, V_{sw} = ?

Mass = Density * Volume

Mass of Ice, m_{ice} = \rho_{ice}V_{ice}

Mass of Salt water, m_{sw} = \rho_{sw}V_{sw}

Since , m_{ice} = m_{sw}

\rho_{ice}V_{ice} = \rho_{sw}V_{sw}\\\\(917*278) = (1029*V_{sw})\\\\V_{sw} = \frac{254926}{1029} \\\\V_{sw} = 247.74 km^3

5 0
3 years ago
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