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expeople1 [14]
3 years ago
5

What is the stable ion of beryllium.

Chemistry
2 answers:
Oxana [17]3 years ago
7 0

Answer:

it is deez

Explanation:

8uyygl.huyiuo9j

Archy [21]3 years ago
4 0

Answer:

Be^2+ ion

Explanation:

Be(OH)x^y- ions and Be(OH)2 solid

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A 0.245-L flask contains 0.467 mol co2 at 159 °c. Calculate the pressure using the ideal gas law.
lubasha [3.4K]

Answer:

Pressure, P = 67.57 atm

Explanation:

<u>Given the following data;</u>

  • Volume = 0.245 L
  • Number of moles = 0.467 moles
  • Temperature = 159°C
  • Ideal gas constant, R = 0.08206 L·atm/mol·K

<u>Conversion:</u>

We would convert the value of the temperature in Celsius to Kelvin.

T = 273 + °C

T = 273 + 159

T = 432 Kelvin

To find the pressure of the gas, we would use the ideal gas law;

PV = nRT

Where;

  • P is the pressure.
  • V is the volume.
  • n is the number of moles of substance.
  • R is the ideal gas constant.
  • T is the temperature.

Making P the subject of formula, we have;

P = \frac {nRT}{V}

Substituting into the formula, we have;

P = \frac {0.467*0.08206*432}{0.245}

P = \frac {16.5551}{0.245}

<em>Pressure, P = 67.57 atm</em>

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3 years ago
What the total charge of an atom with 8 protons 10 neutrons and 10 electrons?
Pavlova-9 [17]
O2- should be the answer
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How does the density of one penny compare with the density of two pennies
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Density increases.......
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How many molecules of water are produced by the combustion of 3.00 g of methane
Karo-lina-s [1.5K]
3/8 NA = 3/8 x 6.023 x 10^23 molecules of h2o
so, we can easily conclude that 1mole of CH4 gives 2mole of H2o
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Which of the following is the smaller atom: magnesium or chlorine?
Aleks04 [339]

Answer:

Chlorine atoms are smaller

Explanation:

Magnesium have more electrons than chlorine.

3 0
2 years ago
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