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Discuss the structure of a typical plant cell. How is a plant typical plant cell different from a typical
animal cell?
Plant cells have a cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a rigid layer that is found outside the cell membrane and...
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Increasing levels of complexity begin at the _____ and _____, and continue to the pons and medulla oblongata, hypothalamus, thalamus, and midbrain, basal nuclei, and cerebral cortex.
Increasing levels of complexity begin at the cerebellum and cerebrum, and continue to the pons and medulla oblongata, hypothalamus, thalamus, and midbrain, basal nuclei, and cerebral cortex
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Ca + H2O => CaO + H2. element oxidized:______ from _____ to _____ reducing agent _____
element reduce:______ from_____to______ oxdizing agent:_____
Ca + H2O =gt; CaO + H2. element oxidized:__Н____ from __+1___ to __0__ reducing agent __Са___ element reduce:__Са____ from__0___to__+2___ oxdizing agent:__Н___
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An aqueous solution has 18% of solute. By chemical analysis, it was known that it has 10 mol% solute.
What is the molecular weight of the solute?
m = n*M, m - weight, n - quantity of substance, M - molecular weight mx /18 = mH2O / 82nx = nH2O / 9nx *Mx = nH2O * MH2O*18/82Mx...
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The ion P3− P3− has _____ protons and _____ electrons.
Now, the P atom has 15 protons (+15) and 18 electrons (-18) which = -3 net charge on the P-3 ion.15 , 18
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If a 300.0 mL sample of a gas is heated at constant pressure from 25.0ºC to 55.0ºC, its new volume is
_____
_____
mL?
Write the ideal gas law: PV=nRT, where P is the pressure of the gas, V is the volume of the gas, n is the number of moles of gas, R...
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_____ tells how strongly an atom attracts shared electrons to itself.
Nonpolar covalent substances do not have any _____.
Electronegativity tells how strongly an atom attracts shared electrons to itself. Nonpolar covalent substances do not have any dipole moment.
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82 mg of solute is mixed into a 0.35 L solution. At a temperature of 37°C and an osmotic pressure of 3.2 x 10-3 atm, calculate the molar mass of the solute.
82 x 0.082 x 310/1000 x 3.2 x 10-3 x 0.35 = 1,861.10714
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In a private closed economy _____ investment is equal to saving at all levels of GDP and equilibrium occurs only at that level of GDP where _____ investment is equal to saving.
Solution:The answers are as follows:1. Actual2. PlannedIn a private closed economy, actual investment is equal to saving at all levels of GDP and equilibrium occurs only at that level of GDP where...
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If foreign competition for South African producers of textiles increased, then we would expect the demand for domestically produced textiles to _____ and the demand for labour to _____.
If foreign competition for South African producers of textiles increased, then we would expect the demand for domestically produced textiles to decrease and the demand for labour to increase
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