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)

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

Which of the following is a physical property flammability heat of combustion solubility and toxicity

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.