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Vikki [24]
3 years ago
9

In the simple act of lighting a match, chemical energy stored in the match head is transformed into heat and light. What is true

about this energy transformation?
Chemistry
2 answers:
Alexxandr [17]3 years ago
6 0

Striking the match would be mechanical energy, once the match is lit it would produce thermal energy which is what you would feel as heat and electromagnetic which would be seen as light.

harina [27]3 years ago
5 0

The head of a matchstick has a great deal of chemical energy stored in it, including combustible substances that produce a flame when rubbed against a suitable surface. ... As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some is transformed into light energy. Hope this helps

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Answer:

1 mole of Al2O3 = 102 grams

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102 grams of Al2O3 contains = 54 gram of Al2

10kg of Al2O3 contains = (54/102)*10000g Al2

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2 years ago
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yes

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Leave the answer blank if no precipitate will form. (Express your answer as a chemical formula.) Formula of precipitate ZnCl2(aq
Rasek [7]

Answer:

1. Zn(OH)₂ (s)

2. Ag₂CO₃ (s)

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4. No reaction

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Explanation:

Let's state the equations and we analyse some solubility and precipitation information:

ZnCl₂(aq) + 2KOH(aq) → Zn(OH)₂ (s)  +  2KCl (aq)

All the salts from the halogens with group 1, are soluble.

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All salts from carbonates are insoluble

2(NH₄)₃PO₄(aq) + 3Ni(NO₃)₂(aq) → Ni₃(PO₄)₂(s) ↓ + 6NH₄NO₃(aq)

Salts from phosphates are insoluble

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NaCl(aq) + KNO3(aq) → NO REACTION

All salts from nitrate are soluble

All the salts from the halogens with group 1, are soluble

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All salts from carbonates are insoluble

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7 0
3 years ago
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murzikaleks [220]
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3 years ago
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What occurs during a slump?
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