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Ivan
3 years ago
11

Which two have to do with Movement of Galaxies? (pick 2)

Chemistry
1 answer:
pychu [463]3 years ago
6 0
I don’t see anything
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What is a mole and its properties​
klio [65]

One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant. The concept of the mole can be used to convert between mass and number of particles.

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What must happen for fluorine to become stable
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Gaining of 1 electrons
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In a ground state hydrogen atom in which orbital is the electron
vagabundo [1.1K]
The function is known as the atomic orbital. 
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Hoped this helped ;)<span />
4 0
3 years ago
Si te comes un banano de 125 g, asumiendo que este es 100% potasio, calcula lo siguiente: Determina la cantidad de Kilocalorías
Bond [772]

Answer:

0.0179254 kilocalorías(0,0179254 kilocalorías.)

Explanation:

Paso 1

Encontramos la Energía Calórica del Plátano

Se nos dice que el plátano es 100% potasio, por lo tanto

Fórmula de energía térmica = MCΔT

Dónde

M = Masa de sustancia (gramos)

C = Calor específico (j / g ° c)

ΔT = Cambio de temperatura (Temperatura final - Temperatura inicial) (° C)

Masa de (plátano) potasio = 125g

Calor específico de potasio = 0,75j / g ° C

ΔT = Cambio de temperatura

= 37,3 ° C - 36,5 ° C

= 0,8 ° C

Calor específico del banano

Q = 125 g × 0,75j / g ° C × 0,8 ° C

Q = 75 julios

Por lo tanto, 125 gramos de potasio (plátano) contienen 75 julios de energía.

Paso 2

Convertimos Julios de energía en kilocalorías

1 julio = 0.000239006 kilocalorías

75 julios =

Cruz multiplicar

75 julios × 0.000239006 kilocalorías / 1 julio

= 0.0179254 kilocalorías.

Por tanto, 125 g de plátano contienen 0,0179254 kilocalorías.

3 0
3 years ago
Susan conducts an experiment five times and gets a solution concentration of 1.9M, 2.1M, 1.8M, 1.9M, and 2.2M. The known concent
4vir4ik [10]
D they are accurate but not preci
5 0
3 years ago
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