If a solution has virtually no hydrogen ions what type of ph does it have?

0
7
2
13

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 is the mass of 0.46 mol of mgcl2

Can someone me with 6 to 10 plz this is for masteries test.