Chemistry, 20.02.2020 18:01 homelanie21
Which of the following is an example of a decomposition reaction? 1) H2 + O2 → H2O 2) MgO2 → Mg + O2 3) MgSO4 + 2NaCl → MgCl2 + Na2SO4 4) 2Na + Cl2 → 2NaCl
Answers: 1
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Will mark brainliest how many electrons can be held in the energy level n = 4?
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Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.
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Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
Which of the following is an example of a decomposition reaction? 1) H2 + O2 → H2O 2) MgO2 → Mg + O2...
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