The movement of the upper mantle and the tectonic plates of the Earth's lithosphere results in the movement of the Earth's crust. The tectonic plates float on the asthenosphere, a semi-fluid part of the upper mantle, and are driven by convection currents.
The movement of Earth's plates is driven by the upper mantle. The Earth's lithosphere, which is the topmost layer consisting of the crust and the rigid upper part of the mantle, is broken up into tectonic plates. These tectonic plates float on the semi-fluid layer of the mantle known as the asthenosphere. Convection currents in the asthenosphere, which is part of the upper mantle, move these plates. Thus, the upper mantle has a significant role in the movement of the Earth's crust.
#SPJ1
FeSO₄ + 2K₂C₂O₄ → K₂[Fe(C₂O₄)₂] + K₂SO₄
Iron(II) sulfide react with potassium oxalate to produce potassium dioxalatoferrate(II) and potassium sulfate.
The mineral Humboldtine has the formula Fe²⁺(C₂O₄). 2H₂O
The color of the mineral is yellow to amber yellow.
It is a rare authigenic organic mineral occuring on fracture surfaces in coal deposits and rarely in granitic pegmatites and hydrothermal mineral deposits.
2) the volume of 0.150 M KMnO4 needed to replaced 1.85 mol MnCl2
B. mixtures
C. compounds.
2. The forces that hold atoms together in combinations are called
A. energy bonds.
B. nuclear bonds.
C. chemical bonds.
3. Every electron has a
A. neutral charge.
B. positive charge.
C. negative charge.
4. The exact positions of the electrons in an atom cannot be determined because
electrons are always
A. moving
B. sharing.
C. changing
5. Compared with electrons that are closer to the nucleus, those that are farther
away have
A. less energy
B. more energy
C. equal energy
question no 1 answer is compounds
Elements combine to form millions of compounds. The force holding atoms together in these combinations are chemical bonds. Each electron has a negative charge, electrons are always moving, and have more energy the farther they are from the nucleus.
The elements can combine in many ways to create compounds, which amount to millions. When atoms connect or adhere to each other to shape those compounds, it happens through chemical bonds. In an atom, each electron has a negative charge, a characteristic that's vital for the creation of chemical bonds. Electrons are in constant movement, which means we cannot exactly determine their positions. As for the energy level of these electrons, those farther away from the nucleus have, in general, more energy than the ones located closer to the nucleus.
#SPJ3
Answer:
Explanation:
(1) In the IV solution, the solute here is the NaCl salt and the solvent is the liquid (water) the salt is dissolved in.
(2) If the NaCl is replace with water, the water content will become hypotonic to the red blood cells as there would be less solute in the solution than in the cell's cytosol. This also means there is more water in the solution than in the cell's cytosol.
(3) Because the water is hypotonic to the red blood cells (as described in (2) above), the net movement of water will be into the cell.
(4) If the movement of water is allowed to continue as described in (3) above (i.e if 0.9% NaCl in the solution is replaced with pure water instead and waited), the cell will rupture which can lead to cell lysis or cytolysis.
NOTE: An isotonic solution describes when there is the same amount of solute in the cell and the solution outside the cell hence there is little or no movement of water.
In a 0.9% NaCl solution, NaCl is the solute and water is the solvent. If replaced with pure water, the water would be hypotonic to red blood cells and water would move into the cells. The red blood cells would undergo osmosis and potentially burst.
In a 0.9% NaCl solution, the sodium chloride (NaCl) is acting as the solute, while the water is acting as the solvent. If the 0.9% NaCl solution is replaced with pure water, the water would be hypotonic to the red blood cells. This means that the concentration of solute particles in the water is lower than that inside the red blood cells. If pure water is used instead, there would be a net movement of water into the red blood cells because water moves from hypotonic solutions to hypertonic solutions in order to equalize the concentration of solute particles.
As a result, if the 0.9% NaCl solution is replaced with pure water and left for some time, the red blood cells would undergo osmosis and swell up. This could potentially lead to the bursting of red blood cells, a process known as hemolysis.
#SPJ3
the aswer is g/ml hope is helpful
Answer:
c. Presence of various elements in the metallic crystal structures is the main contributor to its densely packed structure
d. Metal's crystalline structure tends to be densely packed.
e. Anisotropic materials have their properties varying with the direction of measurement.
Explanation:
a. Isotopic properties are the characteristics of polycrystalline materials.
False because crystalline solids are anisotropic in nature because some properties like refractive index change in different direction in crystalline solids .
b. The crystal structure of metals is very complicated
false - crystalline solids have fixed and ordered pattern. so it has simple structure .
c. false - there is only one element . packed structure is because of short bond length .
d. true - metals are closely packed and in order manner
e. true - they have different properties in all direction like electrical conductivity and refractive index
f. False - metallic bonds are indirectional in nature .