Which Diagram Represents A Physical Change Only

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The answer sheet for part a and part b1 is the last page of this examination booklet.

Which diagram represents a physical change only. Evaporation is a physical change because the substance only changes state which does not affect the substances contained in it. Start studying chemistry mid term review. Which lewis electron dot diagram represents a nitrogen atom in the ground state.

The burning of gasoline is a chemical change and the evaporation of gasoline is a physical change. Turn to the last page and fold it along the perforations. Wednesday june 22 2005 115 to 415 pm only.

Base your answer to the following question on the graph below which represents uniform cooling of a sample of a pure substance starting as a gas. A e and f b b and c c c and d dd and e solid and liquid phases can exist in equilibrium between points a 105 b 168 c 420. The ratio of iron ions to oxide ions is 23 in this compound.

4 oxidation occurs at the cathode and reduc tion occurs at the anode. 2 both occur at the cathode. 6 a compound is made up of iron and oxygen only.

1 both occur at the anode. Burning something can change the. Dbromine changes from a liquid to a gas at 332 k and 1 atm.

Cbromine combines with aluminum to produce albr3. Achemical compositions bempirical formulas cmolecular structures dphysical properties 8a sample of and a sample of differ in their abromine is soluble in water. 20given the balanced particle diagram equation.

1the equation represents a physical change with the product and reactants having different chemical properties. Which diagram represents a physical change only. 3 oxidation occurs at the anode and reduction occurs at the cathode.

Bbromine has a reddish brown color. 1 a chemical change only 2 a physical change only 3 both a chemical and a physical change 4 neither a chemical nor a physical change 12 an increase in the average kinetic energy of a sample of copper atoms occurs with an increase in 1 concentration 3 pressure 2 temperature 4 volume. 2the equation represents a physical change with the product and reactants having identical chemical properties.

Chemistry chapter 1 review. Name period physical changes elements compounds mixtures 1base your answer to the following question on the information below and on your knowledge of chemistry. Paintball is a popular recreational activity that uses a metal tank of compressed carbon dioxide or nitrogen to launch small capsules of paint.

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