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Questions in chemistry

[Answered] Show the steps for solving this problem: How many grams of [tex]$O_2$[/tex] are required to burn 46.0 grams of [tex]$C_5H_{12}$[/tex]?

[Answered] Which of the following best explains why 1-butanol, CH₃CH₂CH₂CH₂OH, has a higher surface tension than its isomer, diethyl ether, CH₃CH₂OCH₂CH₃? A. The higher density of 1-butanol B. The lower specific heat of 1-butanol C. The lack of hydrogen bonding in 1-butanol D. The higher molecular mass of 1-butanol E. The presence of hydrogen bonding in 1-butanol

[Answered] The energy stored in foods and fuels is _________ potential energy. What kind of potential energy?

[Answered] When 5.175 g of lead are heated at 300°C, the lead reacts with the oxygen in the air to produce 5.708 g of an oxide of lead. This is the only product. What is the equation for this reaction?

[Answered] 1) The attraction forces between mercury atoms in liquid mercury are stronger than the intermolecular forces between water molecules. Which of the following is most likely true about mercury? A) It has a higher surface tension than water. B) It exhibits greater capillary action than water. C) It is very soluble in water.

[Answered] Please help balance the following chemical equations: 1. [tex]\text{Na}_2\text{SO}_3 + \ldots = \text{H}_2\text{SO}_4[/tex] 2. [tex]\text{CaSO}_3 + \ldots = \text{H}_2\text{SO}_4[/tex] 3. [tex]\text{SO}_2 + \ldots = \text{MgSO}_3[/tex] 4. [tex]\text{Ca}_3(\text{PO}_4)_2 = \text{P}[/tex] 5. [tex]\text{H}_3\text{PO}_4 + \ldots = \text{Ca(H}_2\text{PO}_4)_2[/tex] 6. [tex]\text{P} + \ldots = \text{Mg}_3\text{P}_2[/tex] 7. [tex]\text{SiO}_2 + \ldots = \text{Mg}_2\text{Si}[/tex]

[Answered] How is the thermal energy of a substance related to its physical state?

[Answered] Placing a material in a new location is called _______.

[Answered] Name two methods that can be used to break down compounds into simpler substances.

[Answered] Find the mistake in the following chemical equation: \[ \text{Cu(NO}_3\text{)}_2(s) + \text{CuO}(s) \rightarrow 2\text{NO}(g) + \text{O}_3(g) \]