Which rule for assigning oxidation numbers is correct?
Hydrogen is usually – 1.
Oxygen is usually -2.
O Apure group 1 element is +1.
O Amonatomic ion is 0.

How far is the region from the equator or control climate

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.

What is dhmo? hint: you find it everywhere something is wet..