skills lab: combination of matter
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Skills Lab: Combination of Matter. Essential Question : When I burn something , does it get heavier or lighter ?. Mg + O 2. TITLE: Burning Magnesium. Problem : Does burning Magnesium make it heavier or lighter?. Chemical Reaction. Mg + O 2. +. - PowerPoint PPT PresentationTRANSCRIPT
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Skills Lab: Combination of Matter
Essential Question:
When I burn something, does it get heavier or lighter?
Mg + O2
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Problem:
Does burning Magnesium make it heavier or lighter?
TITLE: Burning Magnesium
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Mg + O2
Chemical Reaction
+
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Aim: Does burning Magnesium make it heavier or lighter? What type of chemical reaction is involved?
Hypothesis: A statement that predicts what will happen. Use the structure: ‘If…then…because…’
If Magnesium is ignited/burned, then…… because……..
Qualitative hypothesis:
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Mg + O2 MgO
Hypothesis:Quantitative:
2Mg + O2 2MgOBalanced equation:
(Specific) Problem: How much magnesium oxide will be produced from burning ___ g of Mg?
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How much magnesium oxide will be produced from burning 0.24g of Mg?
Mass of Magnesium: 0.24 g
Mass of container: _____
Mass (initial) of Magnesium and container: _____
Mass (final) of Magnesium and container: _____
Predicted Mass of MgO: _______
Final Mass of MgO: _______ heavier or lighter than Mg?
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Mg + O2 MgO
Hypothesis:Quantitative:
2Mg + O2 2MgOAtomic
Mass:
24 16 40
(2 x 24) (2 x 16) (2 x 40)
48 32 80
Balanced equation:
How much magnesium oxide will be produced from burning 0.24g of Mg?
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Predicting the mass of MgO:
X g MgO
Mass of Mg=
80g MgO in balanced reaction
48g Mg in balanced reaction
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