Reaction Represented Chapter 6 Quiz Test
5 Questions
| Total Attempts: 309
Questions and Answers
- 1.A 6.22-kg piece of copper metal is heated from 20.5 degrees celsius to 324.3 degrees celsius. Calculate the heat absorbed (in kJ) by the metal. The specific heat of copper is 0.385 J/g*C
- A.
49.1 kJ
- B.
728 kJ
- C.
0.728 kJ
- D.
0.0491 kJ
- E.
777 kJ
- 2.A 0.1375 g sample of solid magnesium is burned in a calorimeter that has a heat capacity of 3024 J/*C. If temperature increases by 1.126*C, calculate the enthalpy of the combustion of magnesium.
- A.
73.51 kJ/mol
- B.
602.0 J/mol
- C.
27.76 J/mol
- D.
602.0 kJ/mol
Questions: 5 | Attempts: 309 | Last updated: Nov 28, 2018
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Sample Question4 NH3 (g) + 3 O2 (g) --> 2 N2 (g) + 6 H2O (g)If the standard molar heats of formation of ammonia, NH3 (g), and gaseous water, H2O (g), are -46 kJ/mol and -242 kJ/mol, respectively, what is the value offor the reaction represented above?
A chemical reaction is a method that handles the chemical conversion of one chemical substance set to another. It encompasses changes that only include electrons' positions in the forming and breaking chemical bonds between...
Questions: 10 | Attempts: 56 | Last updated: Mar 10, 2021
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Sample QuestionWhich type of reaction breaks down a single reactant into two or more products?
A polyatomic ion is seen as a molecule that has been ionized by gaining or losing electrons. In a polyatomic ion, the group of covalently bonded atoms carries a net charge because the total number of electrons in the molecule is...
Questions: 10 | Attempts: 49091 | Last updated: Aug 26, 2021
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Sample QuestionWhat is the name of this chemical? NH4+
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