What amount of heat will change 30 g of ice at -40°C to liquid water at 70°C?
A. 21.1 kJ
B. 8.7 kJ
C.2.5 kJ
D. 12.4 kJ

Select the correct answer. given: 2libr + ba → babr2 + 2li in this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced? a. 1.18 mol b. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol

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

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above