Chemistry, 13.09.2019 23:30 nockturnal1993
Which of the following statements is/are correct? 1. spontaneous changes only occur in the direction that leads to equilibrium. 2. exothermic reactions are always spontaneous. 3. in any chemical reaction, energy must be conserved. a. 1 only b. 2 only c. 3 only d. 1 and3 e. 1, 2, and3
Answers: 2
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Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons
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Which of the following statements is/are correct? 1. spontaneous changes only occur in the directio...
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