Chemistry, 12.01.2020 05:31 mrblake1594
1. how does the amount of energy in the batteries in a flashlight compare to the total amount of energy given off by the flashlight as light and heat?
2. what are two ways the rate of a chemical reaction can be changed?
3. imagine you chew a cracker and swallow it.
a. what role does saliva play?
b. how is energy stored in a cracker?
c. how is energy released from the cracker?
Answers: 1
Chemistry, 21.06.2019 18:40
What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water
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Chemistry, 22.06.2019 16:50
Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.
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Chemistry, 23.06.2019 02:00
Calculate the molarity of each aqueous solution: a. 78.0 ml of 0.240 m naoh diluted to 0.250 l with water b. 38.5 ml of 1.2 m hno3 diluted to 0.130 l with water
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Chemistry, 23.06.2019 13:00
How does the kinetic energy of a substance's particle in the solid phase compare to their kinetic enegy in the liquid phase?
Answers: 1
1. how does the amount of energy in the batteries in a flashlight compare to the total amount of ene...
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