Chemistry, 14.11.2019 13:31 Jasmineemarieee
Which of these is an example of a physical change?
sugar dissolving in warm water
iron rusting in the presence of moist air
wood burning in the presence of oxygen
baking soda reacting with acid to form a gas
Answers: 3
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According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons
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Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?
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Astudent uses universal ph paper to find the ph of three solutions . solution a has a ph of 5 solution b has a ph of 11 and solution c has a ph of 7 identify which solution is acidic which solution is neutral and which solution is basic
Answers: 1
Which of these is an example of a physical change?
sugar dissolving in warm water
...
sugar dissolving in warm water
...
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