Chemistry, 09.07.2019 16:00 BaileyElizabethRay
Both the physical and chemical properites of a substance can change when a substance undergoes a chemical reaction. when a log is burned, a chemical reaction occurs. the log is transformed into ash, water vapor, and carbon dioxide. the log is flammable, or able to be burned, in its original form. once the log is burned, however, the ashes that are produced are no longer flammable. the volume of the log also changes when it changes into ash and gas. volume is a property. flammability is a property. a. chemical; physical b. physical; physical c. physical; chemical urgent time limit 84pts
Answers: 2
Chemistry, 21.06.2019 21:30
How air particles exert a pressure on the inside of the balloon
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Chemistry, 22.06.2019 03:30
Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!
Answers: 1
Chemistry, 22.06.2019 21:50
Given the data below for the reaction, 2 a + 2 b + 4 c => d + e + 3 f, the reaction is fill in the [ ] order in a, fill in the [ ] order in b, fill in the [ ] order in c and fill in the [ ] order overall. (use the words "first, second, third, fourth" to fill each blank)experimentinitial conc of a, mol/l initial conc of b, mol/l initial conc of c, mol/l initial rate, mol/l.s1 0.1 0.1 0.2 2 x 10-32 0.2 0.3 0.2 6 x 10-33 0.3 0.1 0.2 2 x 10-34 0.4 0.3 0.4 1.2 x 10-2
Answers: 2
Chemistry, 22.06.2019 23:30
The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
Both the physical and chemical properites of a substance can change when a substance undergoes a che...
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