A 255 g sample of ice at 0.0 0C was melted and its temperature increased to 22 0C. What was the amount of heat (q) transferred? Heat of fusion for water (ΔHfus) is 334 j/g
The specific heat of water is 4.18 J/g • 0C
This is a two step process. What steps are necessary to solve the problem?

Explanation:

Hello!

In this case, since we can evidence that the ice is firstly undergoing a melting process at constant 0.0 °C, whose associated enthalpy change is:

Next, the formed liquid water undergoes a heating from 0.0 °C to 22°C, to the associated enthalpy change is:

Thus, the total enthalpy change, or heat added to the system turns out:

Best regards!

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.