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📝 Answered - Fill in the gaps to balance the equation. Use the smallest set of whole numbers to balance the equation and include coefficients of "1" when appropriate. $\square$ $NaNO _3+$ $\square$ 1 $Cr _2\left( CO _3\right)_3 \rightarrow$ $\square$ 3 $Na_2 CO_3+$ $\square$ 2 $Cr \left( NO _3\right)_3$ Complete the table to determine how many atoms of each element are present in the reactants and products. | Element | Reactant | Products | |---|---|---| | Na | | | | N | | | | O | | | | Cr | 2 | 2 | | C | | |
📝 Answered - Alguien puede traducirlo?: What's the fastest animal in the world?
📝 Answered - Fill in the gaps to balance the equation. Use the smallest set of whole numbers to balance the equation and include coefficients of "1" when appropriate. [tex]$\square$ C _6 H _{13} COOH + $\square$ O _2 \rightarrow $\square$ CO _2+ $\square$ H _2 O[/tex] Complete the table to determine how many atoms of each element are present in the reactants and products. | Element | Reactant | Products | |---|---|---| | C | | | | H | | | | O | | |
📝 Answered - Fill in the gaps to balance the equation. Use the smallest set of whole numbers to balance the equation and include coefficients of "1" when appropriate. [tex]$\square$ LiOH + $\square$ AgI $\rightarrow$ $\square$ LiI + $\square$ AgOH[/tex] Complete the table to determine how many atoms of each element are present in the reactants and products. | Element | Reactant | Products | | :------ | :------- | :------- | | Li | | | | O | | | | H | | | | Ag | | | | I | | |
📝 Answered - An organic chemist measures the temperature [tex]$T$[/tex] of a solution in a reaction flask. Here is the result: [tex]$T=21.3{ }^{\circ} C$[/tex] Convert [tex]$T$[/tex] to SI units. Round your answer to 4 significant figures.
📝 Answered - Calculate the temperature at which technetium becomes superconducting in degrees Celsius. Round your answer to 5 significant figures.
📝 Answered - An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
📝 Answered - Select the correct answer. In a given chemical reaction, the energy of the products is greater than the energy of the reactants. Which statement is true for this reaction? A. Energy is absorbed in the reaction. B. Energy is released in the reaction. C. No energy is transferred in the reaction. D. Energy is created in the reaction. E. Energy is lost in the reaction.
📝 Answered - A flask contains an acidic solution with a concentration of $7.1 \times 10^{15}$ hydrogen ions per milliliter. If $4.8 \times 10^{23}$ hydrogen ions have a total mass of 0.8 grams, which of the following is closest to the concentration, in grams per liter, of the acidic solution? (A) $1.2 \times 10^{-5}$ (B) $1.2 \times 10^{-8}$ (C) $1.5 \times 10^{-5}$ (D) $1.5 \times 10^{-8}$
📝 Answered - Fill in the gaps to balance the equation. Use the smallest set of whole numbers to balance the equation and include coefficients of "1" when appropriate. [tex]\square K_2 SiO_3+\square CoF_2 \rightarrow \square KF+\square CoSiO_3[/tex] Complete the table to determine how many atoms of each element are present in the reactants and products. | Element | Reactant | Products | | :------ | :------- | :------- | | K | | | | Si | | | | O | | | | CO | | | | F | | |
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