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padilas [110]
3 years ago
14

What are other materials found in the earth's crust​

Chemistry
1 answer:
Kitty [74]3 years ago
7 0

Answer:

From mud and clay to diamonds and coal, Earth's crust is composed of igneous, metamorphic, and sedimentary rocks. The most abundant rocks in the crust are igneous, which are formed by the cooling of magma. Earth's crust is rich in igneous rocks such as granite and basalt.

Explanation:

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A solution contains 0.182 molmol NaClNaCl and 0.897 molH2OmolH2O. Calculate the vapor pressure of the solution at 55 ∘C∘C. The v
solong [7]

Answer:

Vapor pressure of solution is 78.2 Torr

Explanation:

This is solved by vapor pressure lowering:

ΔP =  P° . Xm . i

Vapor pressure of pure solvent  (P°) - vapor pressure of solution  = P° . Xm . i

NaCl  →  Na⁺  +  Cl⁻     i = 2

Let's determine the Xm (mole fraction) These are the moles of solute / total moles.

Total moles = moles of solvent + moles of solute

Total moles = 0.897 mol + 0.182 mol → 1.079 mol

0.182 / 1.079 = 0.168

Now we replace on the main formula:

118.1° Torr - P' = 118.1° Torr . 0.168 . 2

P' = - (118.1° Torr . 0.168 . 2 - 118.1 Torr)

P' =  78.2 Torr

5 0
3 years ago
What is the number of orbit for calcium
CaHeK987 [17]
It has 20 electrons
7 0
3 years ago
Calculate the hydrogen-ion concentration [H+] for the aqueous solution in which [OH–] is 1 x 10–11 mol/L. Is this solution acidi
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6 0
3 years ago
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(EASY!!) What is the name for this structure?
nikklg [1K]

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Explanation:

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\huge\bold {Answer}

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ion
atom that has a positive or negative charge because it lost or gained one or more electrons

chemical bond
the attractive force that holds atoms or ions together

ionic bond
a chemical bond in which one atom loses an electron and the other atom gains electrons to form ions

chemical formula
a combination of chemical symbols and numbers to represent a substance

covalent bond
bond formed by the sharing of electrons between atoms

Thanks
5 0
3 years ago
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