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

· 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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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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The expression $4x^2$ is already in its simplest form, representing four times the square of $x$.

· Mathematics · Numerical Coefficient · Exponentiation

Author Emily Rosen15 Aug, 2024

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

· Chemistry · Balancing Chemical Equations · Identifying Spectator Ions

Author Johnathan Clark 15 Aug, 2024

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

· Mathematics · Distance-Speed-Time Relationship · Constant And Variable Speed

Author Emily Rosen15 Aug, 2024

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The balanced reaction is

$\mathrm{HNO_3(aq) + CsOH(aq) \rightarrow CsNO_3(aq) + H_2O(l)}$The ionic equation is

$\mathrm{H^+(aq) + NO_3^-(aq) + Cs^+(aq) + OH^-(aq)} \rightarrow$ $\rightarrow \mathrm{Cs^+(aq) + NO_3^-(aq) + H_2O(l)}$The net ionic equation is

$\mathrm{H^+(aq) + OH^-(aq) \rightarrow H_2O(l)}$ · Chemistry · Balanced Chemical Equation Representation · Ionic Dissociation For Strong Electrolytes

Author Johnathan Clark 15 Aug, 2024

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The acid resistance of a pipette depends on its material, with **glass generally being acid-proof except against hydrofluoric acid** $\text{HF}$, 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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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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