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3 years ago

How do Earth's lithosphere,hydrosphere,and atmosphere compare?

2 answers:

7 0

Earth's Spheres. Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).

Oduvanchick [21]3 years ago

6 0

the lithosphere, which contains all of the cold, hard, solid rock of the planet's crust (surface), the hot semi-solid rock that lies underneath the crust, the hot liquid rock near the center of the planet, and the solid iron core (center) of the planet the hydrosphere, which contains all of the planet's solid, liquid, and gaseous water,and the atmosphere, which contains all of the planet's air

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When the name of an anion that is part of an acid ends in -ite, the acid name includes the suffix _____.

Marina86 [1]

(B) suffixous

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3 years ago

Read 2 more answers

In an exothermic reaction, chemical energy is converted to

12345 [234]

Answer:molten iron

Explanation:releases heat and light into surroundings

7 0

3 years ago

Please help, and I’ll thank you.

coldgirl [10]

Answer:

There will be formed 13.82 grams of Fe3O4.

Explanation:

Step 1: the balanced reaction

3 Fe(s) + 4 H2O(l) —— Fe3O4(s) + 4 H2(g)

We see that for 3 moles Fe consumed, there will be consumed 4 moles of H20 and produced 1 mole of Fe3O4 and 4 moles of H2.

Step 2: Calculating moles

⇒mole = mass / Molar mass

⇒moles Fe = 10g / 55.845g/mole = 0.179 moles

⇒moles H2O = 10g / 18g/mole = 0.5556 moles

Since we have 4 moles of H2O consumed for 3 moles of Fe, this means that for 0.179 moles of Fe, we have :

0.179 / 4 *3 = 0.2387 moles of H2O consumed

This means that Fe will be completely consumed and there will remain 0.2387 moles of H2O.

Fe is the limiting reactant and H2O is in excess.

Step 3: Calculate moles of Fe3O4

For 3 moles of Fe consumed, we have 1 mole of Fe3O4 produced.

This means, that for 0.179 moles of Fe consumed, we have 0.179/3 =0.05967 molesof Fe3O4 produced.

Step 4: Calculating mass of Fe3O4

mass= number of moles * Molar mass

mass Fe3O4 = 0.05967 mole * 231.55g/mole = 13.8166 g ≈ 13.82grams of Fe3O4

There will be formed 13.82 grams of Fe3O4.

5 0

3 years ago

Using resonance, select the most acidic protons in the hexane-2,4-dione molecule. The most acidic proton is the one that, upon r

kondor19780726 [428]

Answer:

Protons 4 or 5 are most acidic.

Explanation:

As mentioned there are four types of hydrogen in Hexane-2,4-dione.

The numbering are shown in the figure for your better understanding.

As shown in the figure if we remove the proton from carbon number 3 (protons number 4 or 5), it will result in formation of a carbanion. This carbanion is stabilized due to presence of -I group oxygen and there is possibility of resonance (as shown).

Thus protons 4 or 5 are most acidic.

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3 years ago

En una planta de energía, se produce CO2 gracias a la reacción de combustión del material orgánico con oxígeno para producir CO2

Mamont248 [21]

Answer:

a. Gases ideales: relación entre todas las variables que influyen sobre los gases

Explanation:

La ecuación del gas ideal da la relación entre las variables; presión, volumen, temperatura y número de moles.

Según la ecuación del gas ideal; PV = nRT

P = presión del gas

V = volumen del gas

n = Número de moles del gas

R = constante de gas

T = temperatura del gas

El número de moles de SO2 se obtiene de;

n = PV / RT

n = 0,5 * 25 / 0,082 * 373

n = 12,5 / 30,586

n = 0,41 moles

6 0

2 years ago