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Questions in chemistry

[Answered] In these chemical compounds, C is for carbon, O is for oxygen, and N is for nitrogen. Which chemical compound is most likely inorganic? [tex]$H _2 O$[/tex] [tex]$CH _3 NH _2$[/tex] [tex]$C _6 H _{12} O _6$[/tex] [tex]$CH _4$[/tex]

[Answered] Which of the following does not describe an acidic solution? The $[OH^{-}]$ is greater than $1.0 \times 10^{-7}$ The pH is less than 7.0 The $[OH^{-}]$ is $6.0 \times 10^{-10}$ The $[H_3 O^{-}]$ is greater than the $[OH^{-}]$

[Answered] Which one is an incorrect combination? | List-I (Ligands) | List-II (Characteristics) | |------------------------|----------------------------| | (P) Thiosulphate ion | (1) Bidentate ligand | | (Q) ortho-phenanthroline | (2) Chelating ligand | | (R) oxalate ion | (3) Contains a chiral centre| | (S) pn | (4) Monodentate ligand | | | (5) Ambidentate ligand | | | (6) Flexidentate ligand |

[Answered] Consider the reaction: [tex]2 NOCl(g) \leftrightarrow 2 NO(g)+Cl_2(g)[/tex] At equilibrium, the concentrations are as follows: [tex]\begin{array}{l} {[NOCl]=1.4 \cdot 10^{-2} M} \\ {[NO]=1.2: 10^{-3} M} \\ {\left[Cl_2\right]=2.2: 10^{-3} M} \end{array}[/tex] What is the value of [tex]K _{\text {eq }}[/tex] for the reaction expressed in scientific notation? A. [tex]1.6 \cdot 10^{-5}[/tex] B. [tex]6.2 \cdot 10^4[/tex] C. [tex]1.6: 10^5[/tex]

[Answered] What is eudiometry in chemistry and its applications in calculations?

[Answered] Which of these is a colorless, odorless, radioactive gas that is released when uranium decays? A. Carbon monoxide B. Chlorofluorocarbons C. Polychlorinated biphenyls D. Radon

[Answered] A molecule with a single covalent bond is A. $SiSe _2$ B. $Cl _2$ C. $CO _2$ D. $N _2$

[Answered] In a chemical equation, which symbol should be used to indicate that a substance is in solution? (1) (aq)

[Answered] What is the molality of a solution that has 3 mol of glucose in 6 kg of water? A. $\frac{6 kg}{3 mol}$ B. $\frac{3 mol}{6 L}$ C. $\frac{3 kg}{6 L}$ D. $\frac{3 mol}{6 kg}$

[Answered] Write the equilibrium expression for the autoionization of water. [tex]K _{ w }=\left[ H _3 O ^{+}\right][ OH ] /\left[ H _2 O \right]^2[/tex] [tex]K _{ w }=\left[ H _2 O \right]^2 /\left[ H _3 O ^{+}\right]\left[ OH ^{-}\right][/tex] [tex]K _{ w }=\left[ H _3 O ^{+}\right]\left[ OH ^{-}\right][/tex]