Water has a specific heat of 4.186 J/gºC, and ethanol has a specific heat of 2.450 J/g °C. Based on this
information, which best compares water and ethanol?
Ethanol has a lower molar mass.
Water has more protons and neutrons in its nuclei.
It requires less heat to raise the temperature of a gram of ethanol by 1°C.
There are less molecules in a gram of water.

Given that the molar mass of nano3  is 85.00  g/mol, what mass of nano3  is needed to make 4.50  l of a 1.50  m nano3solution? use  .6.75 g18.9 g255 g574 g

The rules of engagement (roe) working group is often used to (select all that apply.)

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size