Answer:
That should be CaCl2. Otherwise, all your mathematics would be for naught.
Explanation:
D. 18 as the elements in this group are the noble gases which exist as monoatomic elements with a full outer shell
Answer:
The wavelength of a sound is the distance between adjacent identical parts of a wave. The frequency is the same as that of the source and is the number of waves that pass a point per unit of time.
Baking powder is a mixture of baking soda and a mild edible acid such as tartaric acid