Answer: GROUP 2 is the only group to include only metals. Group one includes the most metalic metals but hydrogen is usually put into group one and obviously hydrogen is not a metal. Group 2 includes Br, Mg, Ca, Sr, Ba,Ra.
Explanation:
Answer: 2 moles of 
will be formed.
Explanation:
To calculate the moles :
The balanced chemical equation is:
According to stoichiometry :
2 moles of 
give = 2 moles of
Thus 2 moles of give =
of
Thus 2 moles of will be formed.
Answer:
I think it is B
which I think is the correct answer
Box C will have the greatest density.
All boxes have the same volume.
Explanation:
We calculate the density using the following formula:
density = mass / volume
density of Box A = 10 g / 20 cm³ = 0.5 g/cm³
density of Box B = 30 g / 20 cm³ = 1.5 g/cm³
density of Box C = 170 g / 20 cm³ = 8.5 g/cm³
Box C will have the greatest density.
All boxes have the same volume.
Learn more about:
density
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<span>The transferred electron from lithium to fluorine provides each atom with a full outer energy level.</span>
