Recent questions tagged chemical-reactions-and-thermochemistry

What happens when zinc reacts with sodium hydroxide?

asked Aug 16, 2018 by meena.p

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If $0.050\;mL$ of $0.6\;M\;HCl$ is added to 400 mL of $10^{-5}\;M\;HCl$ what is the resulting pH?

asked Aug 16, 2018 by meena.p

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What is the color of anhydrous copper sulphate?

asked Aug 16, 2018 by meena.p

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Phenolphthalein exhibits which color with an acid?

asked Aug 16, 2018 by meena.p

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What happens when carbon dioxide gas reacts with sodium hydroxide?

asked Aug 16, 2018 by meena.p

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How many ml of barium hydroxide is required to neutralize 55 ml of Nitric acid The concentration of the acid is 0.2585 moles/l and the concentration of the base is 0.047 moles / litre.

asked Aug 16, 2018 by meena.p

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What are the products of the following reaction? $H_2SO_4+NaOH$

asked Aug 16, 2018 by meena.p

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What volume of $0.075\; M \;HCl$ is required to neutralize $100\; ml$ of $0.01\; M\; Ca(OH)_2$ solution?

asked Aug 16, 2018 by meena.p

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What happens when sodium sulphate solution is mixed with the solution of barium chloride?

asked Aug 16, 2018 by meena.p

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The drying of milk of lime (white washing) is due to the action of ___________.

asked Aug 16, 2018 by meena.p

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Which substance completely dissociates in water?

asked Aug 16, 2018 by meena.p

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Neutral solutions have a pH of:

asked Aug 16, 2018 by meena.p

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Which of the following combination reactions contains at least one compound in its reactants?

asked Aug 16, 2018 by meena.p

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The symbol for calcium is Ca, the symbol for sulfur is S, and the symbol for calcium sulfide CaS. Which of the following best describes this chemical reaction: $Ca (s) + S (s) \longrightarrow CaS (s)$?

asked Aug 16, 2018 by meena.p

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A displacement reaction will occur when...

asked Aug 16, 2018 by meena.p

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What is made when magnesium reacts with hydrochloric acid?

asked Aug 16, 2018 by meena.p

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If $NaOH_{(aq)}$ reacts with $HCl_{(aq)},$ reaction can be known as

asked Aug 16, 2018 by meena.p

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Most metals react with acids to form

asked Aug 16, 2018 by meena.p

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Which of the following does not corrode when exposed to the atmosphere-

asked Aug 16, 2018 by meena.p

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In the equation, $NaOH + HNO_3 \longrightarrow NaNO_3 + H_2O$ nitric acid is acting as

asked Aug 13, 2018 by meena.p

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The reaction $2KClO_{3(s)} \longrightarrow 2KCl_{(s)}+3O_{2(g)}$ is a

asked Aug 13, 2018 by meena.p

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Which of the following type of chemical reactions results in a single product.

asked Aug 13, 2018 by meena.p

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What happens when Copper metal is dipped in the solution of zinc sulphate?

asked Aug 13, 2018 by meena.p

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Which metal is displaced when lead is put in the solution of copper chloride?

asked Aug 13, 2018 by meena.p

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What happens when carbon dioxide is passed in lime water?

asked Aug 13, 2018 by meena.p

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What happens when silver chloride is put under sunlight?

asked Aug 13, 2018 by meena.p

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In which of the following category will you put the reaction of heating of ferrous sulphate?

asked Aug 13, 2018 by meena.p

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The reaction in which two compound exchange their ions to form two new compounds is called

asked Aug 13, 2018 by meena.p

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The reaction $2Na+Cl_2 \to 2NaCl$ is an example of

asked Aug 13, 2018 by meena.p

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In the following reaction, identify the products $Na_2CO_3(aq)+2HCl(aq) \to$ __________

asked Sep 19, 2017 by meena.p

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Calculate the entropy change when 36 g of liquid water evaporates at $373\: K( \Delta H_{vap} = 40.63\: kJ/mol)$

asked Mar 16, 2014 by thanvigandhi_1

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Bomb calorimeter used for determining change in internal energy at constant _____

asked Mar 14, 2014 by meena.p

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Which of the following statement is false

asked Mar 14, 2014 by meena.p

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For spontaneous reaction $\Delta G$ is

asked Mar 14, 2014 by meena.p

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During fusion, the entropy of the system

asked Mar 14, 2014 by meena.p

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At constant temperature and pressure which one of the following statements is correct for the reaction? $CO_{(g)} +\large\frac{1}{2}$$O_2 (g) \longrightarrow CO_2(g)$

asked Mar 14, 2014 by meena.p

1 answer

In a reversible adiabatic change $\Delta S$ is

asked Mar 14, 2014 by meena.p

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Heat of neutralization of a strong acid and weak base is

asked Mar 14, 2014 by meena.p

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In an exothermic reaction , heat is

asked Mar 14, 2014 by meena.p

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The heat of neutralization is highest in

asked Mar 13, 2014 by meena.p

1 answer

For which of the following change $\Delta H = \Delta E?$

asked Mar 13, 2014 by meena.p

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For the formation of carbon monoxide (CO) from the elements at 298 K $(\Delta H - \Delta U)$ is (R=8.314 $JK^{-1}mol^{-1}$)

asked Feb 28, 2014 by mosymeow_1

1 answer

Which of the following gas has the highest heat of combustion?

asked Feb 28, 2014 by mosymeow_1

1 answer

Dissolution of gases in water is

asked Feb 28, 2014 by mosymeow_1

2 answers

Enthalpy =

asked Feb 27, 2014 by mosymeow_1

2 answers

For a spontaneous reaction, the $\Delta G$, equilibrium constant, K and $E^\circ _{cell}$ will be respectively

asked Feb 26, 2014 by mosymeow_1

1 answer

Which of the following condition depicts a favourable condition for a spontaneous reaction?

asked Feb 25, 2014 by mosymeow_1

1 answer

For the following thermodynamic process Dry ice $\longrightarrow CO_2$ (g)

asked Feb 24, 2014 by mosymeow_1

2 answers

The value of $\Delta S$ is negative in which of the following process?

asked Feb 24, 2014 by mosymeow_1

2 answers

At constant volume the heat of combustion of solid benzoic acid is -321.30 kJ at $27^\circ C$. The heat of combustion at constant pressure is

asked Feb 23, 2014 by mosymeow_1

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