Answer: the value of X is 1
Co2O3.XH2O = Co2O3.H20
Explanation:Please see attachment for explanation
Answer: True.
Explanation: A teakettle does have a greater frequency than a drumbeat. The teakettle has a higher pitched sound and frequency than a low pitched sound like a drumbeat. So a teakettle is high and a drumbeat is low.
I believe with a simple google search that 99.9
Answer: a Na2CO3! I’m really good in this type of stuff xoxo