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What is similar about geothermal and water?
geothermal is heat and water is h2o
What dry chemical is used to repel heat?
H2O (water) is used to repel heat.
What are three examples of specific molecules?
Water: H2O Ammonia: NH3 Methane: CH4
Why and how does the water inside the chilled water pipes got cooled?
The heat gets removed from the H2O
Why does water take longer to heat?
The boiling point is increased after adding impurities to water.
In a neutralization reaction hydronium ions react with hydroxide ions to produce what?
Water and heat
Is heat changing H2o to steam a physical or chemical change?
Physical change- it is still H2O, and can be changed back to water by cooling it.
Is h20 liquid- H2O solid endothermic?
exothermic, because the water (H2O) was a liquid, heat had to have been taken out to make Ice (H2O) solid. Hope this helps!!
What is the heat change when 55.0g water cools from 60 degree celsius to 25.5?
q(joules) = mass * specific heat * change in temperatureq = (55.0 g H2O)(4.180 J/gC)(25.5o C - 60o C)= (- ) 7932 Joules=============heat change
What molecules enables water to form drops and store heat?
The hydrogen bonds within H2O are very strong and the surface tension that allows for water droplets to form comes from the strong cohesion of water molecules to other water molecules. The high specific heat capacity is also due to the strength of the hydrogen bonds.
How much heat is needed to change 4.5g of water at10C into steam at 150C?
q = mC∆Tq = heat = J m = mass of H2O = 4.5 g C = specific heat for H2O = 4.184 J/g/deg ∆T = change in temp = 140ºC q = (4.5 g)(4.184 J/g/deg)(140 deg) q = 2636 J of heat needed
What is the reaction when water is put in the freezer?
There is no reaction, only a phase change. H2O(liquid) > H2O(solid) Heat is being removed from the system.
