Amineral that breaks into irregular pieces is said to show which of the following? a. cleavage b. fracture c. luster d. hardness

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

What can be found in the ionosphere

What type of reaction fuels the processes seen here?