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3 years ago

234.

Chemistry

1 answer:

DochEvi [55]3 years ago

8 0

Answer:

the answer woul be 89 if you do the math right

Explanation:

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Are changes in the orientation of earths magnetic field

g100num [7]

Magnetic reversals

Explanation:

A change in the orientation of the earth's magnetic field is known as magnetic reversals.

During a magnetic reversal, the geographic south pole aligns with the magnetic north.

The geographic north pole aligns with the magnetic south.

The geomagnetic field of the earth is produced by the movement of metallic minerals in the outer core.
This streaming of metallic minerals generals electric current that induces a magnetic field.

learn more:

Sea floor spreading brainly.com/question/12037536

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3 years ago

N yogurt de 125 g muestra en su etiqueta el contenido de algunas de sus sustancias nutricionales:¿Cuál es la composición en tant

poizon [28]

Answer:

Sustancia Masa (g) Composición (% m/m)

Proteínas 5,5 4,4

Azúcares 5,0 4,0

Sodio 0,06 0,048

Potasio 0,15 0,12

Explanation:

Para calcular la composición porcentual en masa de las sustancias debemos usar la siguiente ecuación:

$\%_{m/m} = \frac{m_{s}}{m_{sol}} \times 100$

En donde:

$m_{s}$ es la masa de la sustancia

$m_{sol}$ es la masa del yogurt = 125 g

Para las proteínas:

$\%_{m/m} = \frac{m_{s}}{m_{sol}} \times 100 = \frac{5,5 g}{125 g} \times 100 = 4,4 \%$

Para los azúcares:

$\%_{m/m} = \frac{5,0 g}{125 g} \times 100 = 4,0 \%$

Para el sodio:

$\%_{m/m} = \frac{0,06 g}{125 g} \times 100 = 0,048 \%$

Para el potasio:

$\%_{m/m} = \frac{0,15 g}{125 g} \times 100 = 0,12 \%$

Espero que te sea de utilidad!

6 0

3 years ago

Am I the only one who waits for a weird question to pop up and answer it?

jenyasd209 [6]

Answer: those are the best questions to answer kfnmbysjghfbs they are literally so unnecassary, but the teaaaaaaa

Explanation:

4 0

3 years ago

Explain in writing how ionic bonds work using Sodium Chloride as an example.

Alisiya [41]

The goal of an element is to obtain a noble gas configuration (obtaining a full valence shell). Therefore, certain elements will either gain or lose electrons in order to obtain this full valence shell. In the case of sodium chloride, it is easy for sodium (having one valence electron) to give up its one electron. Chlorine (having seven valence electrons) wants sodium’s electron because it completes its outer shell and chlorine obtains this noble gas configuration. Ionic bonds always involve a transfer of electrons.

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3 years ago

Which type of reaction occurs in the core of a nuclear reactor in a nuclear power plant? Upper H upper C l plus upper N a upper

Sav [38]

Answer:

Superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n right arrow superscript 90 subscript 38 upper S r plus superscript 143 subscript 54 upper X e plus 3 superscript 1 subscript 0 n.

Explanation:

4 0

3 years ago

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