Explanation:
- F Cl Br
- ionization energy decreases we move down the group
- so Br<Cl<F
2. Na K Li
- ionization energy decreases we move down the group
- so K<Na<Li
3. C N O F
- ionization energy increases as we move across the peroid
- so C<N<O<F
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D. All of the above. Developing medicine, analyzing compounds and producing new product such as plastic all have to deal with chemistry.
B. do the experiment more than once
Explanation:
To do a multiple trials of an experiment, it is best to do the experiment more than once.
Experimental trials are mere replication of the procedures in an experiment.
- Most hypothesis on which experiments are based must be repeatable.
- When experiments are repeated through several trials, their accuracy is increased.
- Multiple trials clearly makes it easy to make meaningful deductions from an experimental process.
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Experiment brainly.com/question/5096428
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Explanation:
chemical formula tells you the specific elements included in the compound and the number of atoms of each. The letters in a chemical formula are the symbols for the specific elements. So for example, H means hydrogen.
The correct answer would be the second option. It would would need 2 moles of electrons to reduce one mole of bromine gas into two moles of the bromide ions. This is a reduction reaction. It would be written as:
Br2 = 2Br- + 2e-
