Answer:
Explanation:
The three of them increase from left to right across the periods of the periodic table, and at the same time, they decrease from up to down across the groups of the periodic table.
Ionization Energy is defined as the energy required to remove the atom of an electron.
Electron affinity is defined as the change in energy when electron is added to a negative ion.
Electronegativity is the ability of an atom to attract other atoms to itself.
The mass percentage of the solution is 137.2% .
<h3>What is mass percent of a solution? </h3>
The mass percent is described as the grams of solute per grams of solution, multiplied by 100 to get Percentage. The mass percent formula is expressed as solving for the molar mass also for the mass of each element in 1mole of the compound.
Mass percentage→mass of solute×100/mass of solution .
We have given here the moles of isopropanol are 0.35 mol and moles of water are 0.85 ,molar mass of isopropanol is 60g/ mol and the molar mass of water is 18g/ mol .
Mass of isopropanol=35×60→2.10g
mass of H20 is 85×18→15.30g
Mass percent →2.10×100/15.30
mass percentage→137.2%
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The balanced equation for the combustion of one mole of magnesium is:
2Mg(s) + O₂(g) → 2MgO(s)
Now, if we identify the given equations as eq 1, eq 2, and eq 3, we have to do the following:
1) <em>Inverse eq 1 </em>and <em>multiply by 2</em>:
2MgCl₂(aq) + 2H₂O(l) → 2MgO(s) + 4HCl(aq)
2)<em>Multiply eq 2 by 2</em>
2Mg(s) + 4HCl(aq) → 2MgCl₂(aq) + 2H₂(g)
3) <em>Multiply eq 3 by 2</em>
2H₂(g) + O₂ → 2H₂O(l)
4) <em>Add eq 1, eq 2, and eq 3</em>
2MgCl₂(aq) + 2H₂O(l) → 2MgO(s) + 4HCl(aq)
2Mg(s) + 4HCl(aq) → 2MgCl₂(aq) + 2H₂(g)
<u>2H₂(g) + O₂ → 2H₂O(l) +</u>
2Mg(s) + O₂(g) → 2MgO(s)
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Answer:
True
Explanation:
Thrust is the force which moves an aircraft through the air. Thrust is used to overcome the drag of an airplane, and to overcome the weight of a rocket. Thrust is generated by the engines of the aircraft through some kind of propulsion system.
Answer:
vacuole, cell wall, and plastids such as chloroplasts.
Explanation:
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