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Chemistry

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Leonora Medhurst

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Cards in this guide (5)
What happens during an exothermic reaction

Heat is given off during an exothermic reaction. Heat is absorbed during an endothermic reaction

What happens to a substances temperature during a phase change

The temperature either increases or decreases which causes the different phase changes

Which of the following shows that the combustion of methane produces 802 kJ mol of energy

CH4(g) + 2O2(g) CO2(g) + 2H2O(g) + 802 kJ/mol

What is the rate of a reaction that follows the rate law rate kAmBn where k 0.2 A3 M B3 M m1 n2

answer is 5.4 (mol/L)/s

What is the definition of specific heat (apex)

the amount of heat need to increase the temperature of 1 g of a substnace 1 C; also called specific heat capacity

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