C. neither a physical or chemical changu
d. both a physical and chemical change
2. if a...
Chemistry, 05.10.2019 10:00 shahfaisal
C. neither a physical or chemical changu
d. both a physical and chemical change
2. if a substance changes color then what has occurred?
a. physical change
b. chemical change
c. either a physical or chemical change
d. neither a physical or chemical change
3. which of the following is not an example of a physical cha
ta) new substance is formed
Answers: 1
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How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles
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Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments
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Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.
Answers: 1
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