Lập công thức hóa học của hợp chất gồm hai nguyên tố sau: a: C(IV) và O(II)

B:CU(II) và OH(I)

(Biết H = 1,Li= 7,O=16,Na =23,AI =27,Si = 28, P = 31, K =39, Ca= 40, S =32,Fe = 56)

the answer is true.

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c, liquids evaporate, creating a gas

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.