Calculate the following. Be sure to follow significant figure rules.

1.) 1.2 m + 2.35 m =

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)

Acompound has the molecular formula c3h8. which class of organic compounds does it belong to?

How many significant figures are in the following numbers ? a. 0.0002030 b. 2.000 c. 2.008900 d. 145.00