Why is ice melting a physical change?
A. the atoms change into different atoms
B. Ice and wat...
Answers: 3
Chemistry, 22.06.2019 13:30, bryce99
In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
Answers: 2
Chemistry, 23.06.2019 04:10, NavyCo
Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction
Answers: 1
Chemistry, 23.06.2019 05:00, daytonalive6511
How many atomic mass units are equal to 1.672Γ10β24 g of protons?
Answers: 3
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