Essays Tagged: "Exothermic"

Chemical Reactions

leased in chemical reactions. The reactions can be described as endothermic (energy is absorbed) or exothermic (energy is released). Signs that a chemical reaction is taking place can be (1) the subst ...

(2 pages) 53 2 2.7 Nov/2004

Subjects: Science Essays

Combustion Of Alcohols

this reaction is:H H | | H - C - C - O- H + 3[O=O] ? 1/2[O=C=O] + 3[H-O-H] | | H HThis reaction is exothermic, as heat is given out. This is because the amount reactant energy is more than the produc ... l diagram: Reaction co-ordinate ?H is the heat content, which is the enthalpy, which is negative in exothermic reactions as the diagram shows that energy is 'lost' as heat. Enthalpy is defined as the ...

(9 pages) 36 0 3.3 Jan/2005

Subjects: Science Essays > Chemistry

"Respiration is very similar to burning." Is this true? Illustrate your answer by describing 3 similarities and 3 differences between the two.

. However, burning can take place in other gases such as chlorine. Also both of these reactions are exothermic - both reactions release heat after reacting with oxygen.Another similarity is that both ...

(2 pages) 25 0 5.0 Jan/2005

Subjects: Science Essays > Biology

Chemistry: Notes I took in class on Heat and Energy.

f energy reactions:*Endothermic- reaction where energy is added in order for reaction to take place*Exothermic- energy (heat) is given off after or during the reaction (explosions)*Most of the time, y ...

(1 pages) 534 0 2.0 Nov/2005

Subjects: Science Essays > Chemistry

A Lab experiment on how to determine the enthalpy change of the decomposition of Calcium Carbonate

, energy is absorbed. If the energy absorbed is less than the energy released, then the reaction is exothermic and the products are more stable than the reactants and vice versa. But, the enthalpy, or ...

(2 pages) 13 0 0.0 May/2007

Subjects: Science Essays > Chemistry

Biology And Fish

Agnatha Lamprey, Hagfish Jaw-less, cartilage, unpaired fins, parasitic, exothermic.Chondrichthyes Sharks, Rays, Skates Cartilage, jaws, paired fins.Osteicht ... a Snakes, Lizard, Turtle Scales, retain water, leathery skin, lays eggs, int. fert, exothermic.Mammalia Humans Hair, endothermic, 4 chamber heart, mammary glands, live ...

(1 pages) 16 0 5.0 Oct/2001

Subjects: Science Essays > Biology

chemistry essay

) with Hydrogen Dioxide (water, H2O) which produces Calcium Hydroxide (Ca(OH)2)The formula for this exothermic reaction is:CaO + H2O > Ca(OH)2 + HeatOnce the heating reaction is complete, the Calci ... hen the button at the bottom of the can is pressed, the water mixes with the quicklime, starting an exothermic reaction that heats the contents of the outer chamber in less the 3 minutes by 50-55° ...

(3 pages) 19 0 0.0 Jun/2014

Subjects: Science Essays > Chemistry