1.Distribua os elétrons nas suas respectivas camadas de cada átomo dos elementos químicos abaixo. a. Na Z=11 b. Al. Z=13 c. K Z=19 d. As Z=37 e. Ca Z=20 f. Ar Z=18

Complete this brønsted-lowry reaction placing each product by its appropriate label. hso4- + hcn

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?