4. Calculate the heat energy needed to heat 25.0 g of water from 13.0°C to 18.0°C. Use chart above for specific heat of water. Use units and show all work. ΔΗ=mcΔΤ AH=( XOXO AH= I 5. Calculate the heat energy needed to heat 25.0 g of aluminum from 13.0°C to 18.0°C. Use chart above for specific heat of water. Use units and show all work. ΔΗ=mcΔΤ AH=( 00 AH= 6. Calculate the heat energy needed to heat 45.0 g of copper from 23.0°C to 30.0°C. Use chart above for specific heat of water. Use units and show all work. Ah-meAT​

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.