Which of the following is most likely an indication of a chemical change?
A. A loud sound when an MP3 player is turned on
B. A loud sound when someone claps their hands
C. A loud sound when a starter's pistol is fired at a race
D. A loud sound when a large object falls to the ground
Answers: 1
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What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5
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Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.
Answers: 1
Chemistry, 22.06.2019 17:00
Complete each row of the table below by filling in the missing prefix or missing exponent.
Answers: 1
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Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products
Answers: 1
Which of the following is most likely an indication of a chemical change?
A. A loud soun...
A. A loud soun...
Mathematics, 08.07.2019 04:00
Mathematics, 08.07.2019 04:00
Mathematics, 08.07.2019 04:00
Mathematics, 08.07.2019 04:00
Mathematics, 08.07.2019 04:00
Mathematics, 08.07.2019 04:00
Mathematics, 08.07.2019 04:00