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11 Nov 2019
Homework%20Assignment%20%231.ppt bbhosted.cuny edu Homework Assignment #1 (Due date: September 13th, 2017) 1) Which of the following figures represents (a) a pure element, (b) a mixture of wo elements, (c) a pure compound, (d) a mixture of an element and a compound? More than one picture might fit each description.) (iv) (vi) (2) Does the following diagram represent a chemical or physical change? How do you know?
Homework%20Assignment%20%231.ppt bbhosted.cuny edu Homework Assignment #1 (Due date: September 13th, 2017) 1) Which of the following figures represents (a) a pure element, (b) a mixture of wo elements, (c) a pure compound, (d) a mixture of an element and a compound? More than one picture might fit each description.) (iv) (vi) (2) Does the following diagram represent a chemical or physical change? How do you know?
Nestor RutherfordLv2
19 Jul 2019