Define the term mole.
Given that the molar mass of water is 18g/mol
What is the mass of 4 moles water molecules?
How many molecules are there?
How many atoms are there? (Avogadro's constant = 6.02x10

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o