1.8 (a) How many significant figures should be reported for the volume of the metal bar shown here? (b) If the mass of the bar
is 104.72 g, how many significant figures should be reported
when its density is determined using the calculated volume?
[Section 1.5]
2.5 cm
1.25 cm
5.30 cm

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)