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Alenkinab [10]
3 years ago
15

What kingdom would be the best option when classifying the organism

Chemistry
1 answer:
klasskru [66]3 years ago
7 0

Organisms can be classified into seven levels. You've read about species and genus, the most specific levels of the classification system most scientists use today.

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2 moles Na = ______ atoms Na. I need help to figure out the number of atoms in Avogadro's number
Reil [10]

Answer:

12.044 x 10^23 atoms Na

Explanation:

1 mol Na has 6.022 x 10^23 atoms of Na

2 moles Na have 2 x NA = 2 x 6.022 x10^23 atoms Na

4 0
3 years ago
Read 2 more answers
plz answer fast Which is not a crystalline allotrope of carbon? Select one: a. soot b. diamond c. graphite
Norma-Jean [14]

Answer:

graphite

Explanation:

Graphite is opaque, a very good lubricant, a good conductor of electricity, and a thermal insulator. Allotropes of carbon are not limited to diamond and graphite, but also include buckyballs (fullerenes), amorphous carbon, glassy carbon, carbon nanofoam, nanotubes, and others.

HOPE IT HELPS :)

PLEASE MARK IT THE BRAINLIEST!

8 0
3 years ago
Making the simplistic assumption that the dissolved NaCl(s) does not affect the volume of the solvent water, determine the const
shtirl [24]

Answer:

  • m = 1,000/58.5
  • b = - 1,000 / 58.5

1) Variables

  • molarity: M
  • density of the solution: d
  • moles of NaCl: n₁
  • mass of NaCl: m₁
  • molar mass of NaCl: MM₁
  • total volume in liters: Vt
  • Volume of water in mililiters: V₂
  • mass of water: m₂

2) Density of the solution: mass in grams / volume in mililiters

  • d = [m₁ + m₂] / (1000Vt)

3) Mass of NaCl: m₁

    Number of moles = mass in grams / molar mass

    ⇒ mass in grams = number of moles × molar mass

        m₁ = n₁ × MM₁


4) Number of moles of NaCl: n₁

   Molarity = number of moles / Volume of solution in liters

   M = n₁ / Vt

   ⇒ n₁ = M × Vt


5) Substitue in the equation of m₁:

   m₁ = M × Vt × MM₁


6) Substitute in the equation of density:

    d = [M × Vt × MM₁ + m₂] / (1000Vt)


7) Simplify and solve for M

  • d = M × Vt × MM₁ / (1000Vt) + m₂/ (1000Vt)
  • d = M × MM₁ / (1000) + m₂/ (1000Vt)

Making the simplistic assumption that the dissolved NaCl(s) does not affect the volume of the solvent water means 1000Vt = V₂  

  • d = M × MM₁ / (1000) + m₂/ V₂

        m₂/ V₂ is the density of water: 1.00 g/mL

  • d = M × MM₁ / (1000) + 1.00 g/mL
  • M × MM₁ / (1000) = d - 1.00 g/mL
  • M = [1,000/MM₁] d - 1,000/ MM₁

8) Substituting MM₁ = 58.5 g/mol

  • M = [1,000/58.5] d - [1,000/ 58.5]

Comparing with the equation Molarity = m×density + b, you obtain:

  • m = 1,000/58.5
  • b = - 1,000/58.5
7 0
3 years ago
Read 2 more answers
What is atomic mass, atomic number, isotopes and how are all these terms related to each other?
Airida [17]
Atomic mass deals with the number of protons and neutrons added together, atomic number deals with protons only, though isotopes can be explained like this, say you had a hydrogen atom it's one proton and one electron if you add a neutron to it, the hydrogen becomes Deuterium which is a isotope of hydrogen it's the same atom just a neutron added to it for a different atomic mass if only slightly changed
8 0
3 years ago
Read 2 more answers
What is the equation for figuring out the Atomic Mass
zhenek [66]

Answer:

Atomic mass = mass of protons + mass of neutrons

Explanation:

In an element atomic mass of an atom can be calculated by adding the mass of protons and neutrons

I hope this helps! :)

8 0
3 years ago
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