How To Questions & Answers | Page 18

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What is the quarter circle's area

The area of the quarter circle is approximately 0.7854 cm20.7854 \, \text{cm}^2.

· Mathematics · The Specific And Relevant Concepts Used To Answer This Question Are: Perimeter Calculation For Quarter Circles · Solving Algebraic Equations For The Variable
Author Emily Rosen15 Aug, 2024
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What expression is equivalent to 2.8k-8.4

The expression equivalent to 2.8k - 8.4 is 0.7(4k - 12).

· Mathematics · Simplification Of Expressions · Distributive Property
Author Emily Rosen15 Aug, 2024
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How to simplify 4x2

The expression 4x24x^2 is already in its simplest form, representing four times the square of xx.

· Mathematics · Numerical Coefficient · Exponentiation
Author Emily Rosen15 Aug, 2024
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What is the net ionic equation of H2SO4 and BaOH2

The net ionic equation for the reaction between H2SO4\text{H}_2\text{SO}_4 and Ba(OH)2\text{Ba(OH)}_2 is Ba2+(aq)+SO42−(aq)→BaSO4(s)\text{Ba}^{2+}(aq) + \text{SO}_4^{2-}(aq) \rightarrow \text{BaSO}_4(s).

· Chemistry · Balancing Chemical Equations · Identifying Spectator Ions
Author Johnathan Clark 15 Aug, 2024
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How to calculate distance an object travels in a specific time

To calculate the distance an object travels in a specific time, use the formula d=v×td = v \times t, where dd is distance, vv is speed, and tt is time.

· Mathematics · Distance-Speed-Time Relationship · Constant And Variable Speed
Author Emily Rosen15 Aug, 2024
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Balanced reaction, ionic equation, net ionic equation for HNO3(aq)+CsOH(aq)

The balanced reaction is

HNO3(aq)+CsOH(aq)→CsNO3(aq)+H2O(l)\mathrm{HNO_3(aq) + CsOH(aq) \rightarrow CsNO_3(aq) + H_2O(l)}

The ionic equation is

H+(aq)+NO3−(aq)+Cs+(aq)+OH−(aq)→\mathrm{H^+(aq) + NO_3^-(aq) + Cs^+(aq) + OH^-(aq)} \rightarrow →Cs+(aq)+NO3−(aq)+H2O(l)\rightarrow \mathrm{Cs^+(aq) + NO_3^-(aq) + H_2O(l)}

The net ionic equation is

H+(aq)+OH−(aq)→H2O(l)\mathrm{H^+(aq) + OH^-(aq) \rightarrow H_2O(l)}
· Chemistry · Balanced Chemical Equation Representation · Ionic Dissociation For Strong Electrolytes
Author Johnathan Clark 15 Aug, 2024
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Is pipette acid proof or not

The acid resistance of a pipette depends on its material, with glass generally being acid-proof except against hydrofluoric acid HF\text{HF}, while polypropylene plastic offers good resistance, and other plastics vary.

· Biology · Glass Resistance To Acids · Types Of Plastic Materials
Author Rebecca Green 15 Aug, 2024
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Why does butter have a lower melting point than graphite

Butter has a low melting point compared to graphite because it is held together by weak Van der Waals forces, whereas graphite's structure is stabilized by strong covalent bonds within its layers.

· Chemistry · Intermolecular Forces · Covalent Bonds
Author Johnathan Clark 15 Aug, 2024
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