17.7 I think
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There are 2 significant figures in this number. A significant figure is any number that isn’t 0. Hope this helps.
Answer:
Group B is the control group
Explanation:
In an experiment, a control group is the standard to which comparisons are made in an experiment.
Answer:
F which is Flourine.
Explanation:
This is because it has 7 valence electrons therefore it will have to gain an electron to form an ion (anion) and become stable
Answer:
an increase in temperature
Explanation:
The chemical reaction that is produced by modelage masks causes: an increase in temperature
