What is the final temperature of a 100. g sample of iron when it loses 2.0 kJ of heat if the initial temperature was 80.0 °C?
Group of answer choices

O -48 °C
O 37 °C
O 80 °C
O 43 °C

Answer the molar mass of magnesium is 24.305g/mol.

Answer(2) electrons;

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.   

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