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What is the outermost layer of the Earth called?

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Answer 1

Answer:

Answer:

the outermost layer called Crust

Related Questions

Which of the following is the largest contributor to the salt ions in the ocean?Select one of the options below as your answer:a. sodium b. chloride c. sulfates d. calcium
The reaction of a Lewis acid with a Lewis base would most likely be accompanied by an increase in which item?covalent bonds hydronium ions electron pairs hydroxide ions
How much heat is absorbed during the reaction of 48.0 grams of O2 with excess nitrogen in the following reaction if ΔH = 68 kJ/mol N2?"
3.50 L of 0.200 M hydrochloric acid is prepared using 12.0 M HCl(aq) stock solution to which water is added. What volume of the stock solution is required? a. 7.00 mL b. 8.40 mL c. 17.1 mL d. 58.3 mL
What the total number of neutrons in a atom of 0-18?

Which of the following is a single replacement reaction?Fe2O3 + 3H2O yields 2Fe(OH)3FeS + 2HCl yields FeCl2 + H2S
2Mg + O2 yields 2MgO
Mg + 2HCl yields MgCl2 + H2

Answers

Answer: $Mg+2HCl\rightarrow MgCl_2+H_2$

Explanation:

1. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.

Example: $Fe_2O_3+3H_2O\rightarrow 2Fe(OH)_3$

$2Mg+O_2\rightarrow 2MgO$

2. Double displacement reaction is one in which exchange of ions take place.

Example: $FeS+2HCl\rightarrow FeCl_2+H_2S$

3. Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.

Example: $Mg+2HCl\rightarrow MgCl_2+H_2$

Mg + 2HCl yields MgCl2 + H2 since chlorine is being displaced

Which solution has the same boiling point as 0.25 mol CaCl2 dissolved in 1000 g water?Help Please, Thanks!

0.75 mol sucrose dissolved in 1000 g water
1.0 mol ethylene glycol dissolved in 1000 g water
0.50 mol CaCl2 dissolved in 1000 g water
0.25 mol NaCl dissolved in 1000 g water

Answers

The boiling point of water at 1 atm is 100 degrees celsius. However, when water is added with another substance the boiling point of it rises than when it is still a pure solvent. This called boiling point elevation, a colligative property. The equation for the boiling point elevation is expressed as the product of the ebullioscopic constant (0.52 degrees celsius / m) for water), the vant hoff factor and the concentration of solute (in terms of molality).

ΔT(CaCl2) = i x K x m = 3 x 0.52 x 0.25 = 0.39 °C
ΔT(Sucrose) = 1 x 0.52 x 0.75 = 0.39 °C
ΔT(Ethylene glycol) = 1 x 0.52 x 1 = 0.52 °C
ΔT(CaCl2) = 3 x 0.52 x 0.50 = 0.78 °C
ΔT(NaCl) = 2 x 0.52 x 0.25 = 0.26 °C

Thus, from the calculated values, we see that 0.75 mol sucrose dissolved on 1 kg water has the same boiling point with 0.25 mol CaCl2 dissolved in 1 kg water.

Given the equation representing a system at equilibrium:N2(g) + 3H2(g)<==>2NH3(g) + energyWhich changes occur when the temperature of this system is decreased?
(1) The concentration of H2(g) increases and the concentration of N2(g) increases.
(2) The concentration of H2(g) decreases and the concentration of N2(g) increases.
(3) The concentration of H2(g) decreases and the concentration of NH3(g) decreases.
(4) The concentration of H2(g) decreases and the concentration of NH3(g) increases.

Answers

When the temperature is decreased, the concentration of H2(g) decreases and the concentration of NH3(g) increases.

What is equilibrium?

The term equilibrium refers to the point when the rate of forward reaction is equal to the rate of reverse reaction. In that case, the reaction has attained a dynamic equilibrium.

Now, when the temperature is decreased, the concentration of H2(g) decreases and the concentration of NH3(g) increases.

Learn more about reaction equilibrium:brainly.com/question/15118952

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N2(g) + 3H2(g)<==>2NH3(g) + energy, the changes that occur when the temperature of this system is decreased is that concentration of H2(g) decreases and the concentration of NH3(g) increases. The answer is number 4. The rest of the choices do not answer the question above.

Why is silicon used to make PV cells

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Silicon is used in producing Pv celss because cells made from the crystallized polycrystalline silicon have efficiencies in the range of 14-18% and a moderate price.

Which of the following descriptions explain the process of water freezing? A. What're molecules speed up until the escape into a different phase.
B. Water molecules slow done until they begin to form stronger bonds together.
C. As water molecules cool, their shape changes from rounded to irregular, making them more likely to link to one another
D.Water molecules are squeezed together by high pressure until they begin to stick to one another.

Answers

The correct option is B.

When the temperature of water is reduced, the water cools down and the molecules of the water lose energy and move slowly. As the water is cooling down its volume expands. When the temperature of the water reaches zero degree Celsius, the molecules of the water stick together and form solid ice, thus turning from a liquid state to a solid state.

The process of freezing occurs when B) water molecules slow down until they begin to form stronger bonds together. These stronger bonds eventually turn the water molecules into a solid formation.

What are ionic compounds typically composed of?a metal anion and a nonmetal cation

two metal anions

a metal cation and a nonmetal anion

two nonmetal cations

Answers

ionic compounds are held together by ionic bonds are formed by the transfer of electrons from a metal to a non metal

Ionic bond is formed by the electrostatic attraction between the oppositely charged ions.

metals give out electrons and becomes positively charged. positively charged ions are called cations. so these are called metal cations

the electrons given out are taken in by non metals and become negatively charged. negatively charged ions are called anions. then they are called non metal anions.

so ionic compounds are formed by the electrostatic attraction between metal cations and non metal anions.

therefore ionic compounds are composed of a metal cation and a nonmetal anion

Ionic compounds are typically composed of a metal cation and nonmetal anion.

Other Questions

What ions are in water all the time?

2) El plomo (Pb) tiene de número atómico (Z) 82 y de número másico (A) 207. Las partículas delátomo neutro son: a. Número de protones _______________ b. Número de electrones _______________ c. Número de neutrones _______________

The atomic number and mass number do not change during this type of radioactive decay.

Name the two sub-atomic particles in the nucleus of an aluminium atom.