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Diano4ka-milaya [45]
2 years ago
6

Earth’s inner core:_____ as Earth’s outer core:liquid

Chemistry
1 answer:
KatRina [158]2 years ago
5 0

Answer:However, unlike the outer core, the inner core is not liquid or even molten. The inner core's intense pressure—the entire rest of the planet and its atmosphere—prevents the iron from melting. The pressure and density are simply too great for the iron atoms to move into a liquid state.

Explanation:please give brainliest

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Cobalt-59 is the only stable isotope of this transition metal. One ⁵⁹Co atom has a mass of 58.933198 amu. Calculate the binding
Temka [501]

Cobalt-59 is the only stable isotope of this transition metal. • Mass of proton = 1.00783 amu1.00783 amu

<h3>What is isotope ?</h3>

Isotopes are two or more atom types that share the same atomic number (number of protons in their nuclei), location in the periodic table, and chemical element but have distinct nucleon numbers (mass numbers) as a result of having a different number of neutrons in their nuclei. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics.

The name "isotope" refers to the fact that different isotopes of a single element occupy the same location on the periodic table. The term "isotope" is derived from the Greek words isos ("equal") and topos ("place"), which together indicate "the same place." In 1913, Scottish physician and author Margaret Todd suggested the term to British chemist Frederick Soddy.

To learn more about isotope  from the given link:

brainly.com/question/364529

#SPJ4

5 0
2 years ago
Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solutio
agasfer [191]

Answer:

Twice  as much.

Explanation:

That's because the freezing point depression depends on the total number of solute particles.

C₆H₁₂O₆(s) ⟶ C₆H₁₂O₆(aq)

0.01 mol of C₆H₁₂O₆ gives 0.01 mol of solute particles.

NaCl(s) ⟶ Na⁺(aq) + Cl⁻(aq)

1 mol of NaCl gives 0.01 mol of Na⁺(aq) and 0.01 mol of Cl⁻(aq).

That's 0.02 mol of particles, so the freezing point depression of 0.01 mol·L⁻¹ NaCl will be twice that of 0.01 mol·L⁻¹ C₆H₁₂O₆.

6 0
4 years ago
Una solución contiene 25.10 ml de H2SO4 (densidad de 1.34 g/ml). Calcular la molaridad, moralidad, normalidad, fracción molar de
aliina [53]

Answer:

Molaridad: 0.80 mol/L

Molalidad: 0.80 mol/kg

Xst: 0.014

Xsv: 0.986

N: 1.6 Eq/L

Explanation:

Volumen de soluto: 25.10 mL (ácido sulfúrico)

Volumen de solvente: 426 mL (agua)

Sabemos que la densidad del acido es 1.34 g/mL, por lo que podemos calcular así la masa de ácido en solución:

1.34 g/mL = masa / volumen

1.34 g/mL . 25.10 mL = 33.6 g

Con la masa molar, calculamos moles: 33.6 g . 1 mol / 98g = 0.343 moles

Molaridad: (moles de 1 soluto en 1 L de solución)

Convertimos mL a L, asumimos que el volumen de solvente es el volumen total: 426 mL . 1L / 1000 mL = 0.426 L

0.343 mol / 0.426 L =  0.80 M

No existe moralidad en Quimica, asumo que es molalilad

La molalidad señala moles de soluto en 1 Kg de solvente. Necesitamos la masa de solvente que calculamos a traves de la densidad del agua:

1 g/ mL = masa / volumen

1 g/mL . 426 mL = 426 g de solvente

Convertimos a kg → 426 g . 1 kg / 1000 g = 0.426 kg

0.343 mol / 0.426 kg = 0.80 m

Para las fracciones molares sumamos los moles de cada compuesto

Moles de soluto + moles de solvente = Moles totales

Xst = moles de soluto / moles totales

Xsv = moles de solvente / moles totales

Los moles de solvente son: 426 g . 1mol / 18g = 23.67 moles

0.343 mol st + 23.67 mol sv = 24.013 moles

Xst = 0.343 / 24.013 = 0.014

Xsv = 23.67 / 24.013 = 0.986

La normalidad señala la cantidad de equivalentes de soluto, contenidas en 1L de solución:

Se calculan los Eq como (masa molar / N° de H⁺ u OH⁻ si es base)

Eq acido sulfurico = 98 g / 2 = 49 Eq

(Dividido 2 porque son 2 H⁺)

Eq acido sulfurico en 33.6 g = 33.6 g / 49 → 0.686 Eq

N = 0.686 Eq / 0.426 L → 1.61 N

Si la cantidad de H⁺ para un acido o de OH⁻ para una base es 1:

Molaridad = Normalidad

Si la cantidad es el doble podemos decir:

2 . M = N

Si verificamos, 2 . 0.8 M = 1.6 N

8 0
3 years ago
The city council of a small town wanted to add fluoride to their water so that all the residents would have healthier teeth. The
azamat

Answer:NaF is ionic. NF3 is covalent. SiF4 is ionic. CaF2 is Ionic and  NH4F is also ionic. Ionic compounds transfer electrons whereas covalent compounds share electrons hence the word "co". Also, ionic compounds are formed with metal and nonmetal. Where a covalent is with 2 nonmetals. Only ionic compounds would produce fluoride in water because ionic compounds can dissolve in water and covalent compounds cant.

3 0
3 years ago
1. Which law is associated with inertia?
enot [183]

1. Which law is associated with inertia?

2. If you increase the force in an object what happens to the acceleration?

3. If you use the same force on a less massive object what happens to the acceleration?

4. Which law states force is dependent on the mass and acceleration of an object?

5. What causes an object to slowdown or speed-up?

                  HOPE IT HELPS YOU

8 0
3 years ago
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