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Questions in chemistry

[Answered] Use electronic factors to explain why 4-nitrobenzaldehyde readily undergoes nucleophilic addition compared to 4-methoxybenzaldehyde. Propose a mechanism for the reaction of propanone with methylamine at pH=5.6 and explain in detail why the pH of the medium should be controlled. Propose a detailed mechanism for the reaction of propanone with an excess of methanol in the presence of a mineral acid catalyst. Propose a mechanism for the acid-catalyzed reaction of propanone with hydroxylamine.

[Answered] Which refers to the type of chemical bond that involves the transfer of electrons between atoms? A. metallic B. polar covalent C. ionic D. covalent

[Answered] Provide the correct IUPAC name for BaCl2.

[Answered] What is the correct formula for aluminum phosphide? A. $Al _3 P _3$ B. PAI C. AIP D. $Al _5 P _3$

[Answered] What do the yellow-colored blocks in the periodic table indicate? A. noble gases B. alkali metals C. halogens D. alkaline earth metals

[Answered] In terms of polarity, state why NaCl is soluble in water.

[Answered] What is the formula of the ionic compound tin(IV) bromide? A. $SnB _4$ B. $SnBr _4$ C. $SnBr _2$ D. $Sn _4 Br$

[Answered] Combustion of glucose $\left( C _6 H _{12} O _6\right)$ is the main source of energy for animal cells: $C_6 H_{12} O_6(s)+6 O_2(g) \rightarrow 6 CO_2(g)+6 H_2 O(l) \quad \Delta G_{r x n}\left(37{ }^{\circ} C\right)=-2872 . kJ$ This energy is generally stored as ATP (adenosine triphosphate) molecules, which can release it when convenient by hydrolysis ("water-assisted decomposition") into ADP (adenosine diphosphate) molecules and a phosphate anion, often given the symbol $P_i$ in biochemistry: $\operatorname{ATP}(a q) \rightarrow \operatorname{ADP}(a q)+P_{i}(a q) \quad \Delta G_{r x n}=-35 \text { to } 70 kJ$ The actual amount of free energy released by the hydrolysis of ATP varies, depending on the exact conditions inside the cell. Suppose under certain conditions hydrolysis of ATP actually releases $-64.3 kJ / mol$. Calculate the maximum number of ATPs that could be created from ADPs and $P_i$ by the combustion of a molecule of glucose. Your answer must be a whole number.

[Answered] What is the name of this ion? [tex]$NO _3^{-}$[/tex] | nitrate | nitride | |---|---| | hydronium | nitrite |

[Answered] What is the formula of nickel (II) acetate?