In this activity, you will use models to categorize stars and to explain how past and future space exploration allows scientists to
learn more about stars and their formation. In the process, you
will!
• ask questions to identify and clarify evidence for an argument
• conduct a short research project that answers a question and
allows for further explanation

Is this a single replacement reaction or there is no

Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)

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.