Propose and argue using CER (Claim - Evidence - Reasoning) an alternative element to use in solar cells different from silicon. Use evidence of atomic structure, periodic trends, and chemical bonding properties as evidence for your argument

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Tell me the iupac names of the following alcohols:

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.