Which of these is an example of a physical change?
a) a banana ripening in the air
b)...
Chemistry, 12.10.2019 22:20 ptonygonzalez701
Which of these is an example of a physical change?
a) a banana ripening in the air
b) hydrogen burning in the air
c) zinc reacting with an acid
d) liquid water turning into vapor
Answers: 2
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Which of the following best defines homeostasis? forming identical cells breaking down glucose maintaining stable internal conditions increasing an organism's temperature
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Chemical kinetics what was the rate of reaction in trial 3? choose the closest answer.
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Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?
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Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
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