We're supposed to create a visual representation of a chemical reaction using bubbles and include the charges on ions. the reaction is Ca(NO3)2(aq)+ Na2SO4(aq)= NaNO3(aq)+ CaSO4(S). I have the first part done.

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?

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

What is the name of the enzyme that forms at the start of transcription?