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erastovalidia [21]
3 years ago
6

What effect can new observations have on a scientific theory

Chemistry
1 answer:
Roman55 [17]3 years ago
5 0
New observations often tend to be on the same basis as the old ones and don't tend to change the theory but improve upon them. For example Isaac Newton stated the theory of gravity however thought the years scientists have improved upon his idea. Although the basis is the same
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1. 2Al(s)+6HCl(aq)⇒2AlCl₃(aq)+3H₂(g)

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<h3>Further explanation</h3>

There are several reactions that can occur in a chemical reaction: single replacement, double replacement, synthesis, decomposition or combustion, etc.

1.Al(s)+HCl(aq)⇒AlCl₃(aq)+H₂(g)

type : single replacement

balance :

2Al(s)+6HCl(aq)⇒2AlCl₃(aq)+3H₂(g)

2. AgNO₃ (aq) + Cu (s) ⇒ Cu(NO₃)₂ (aq) + Ag (s)

type : single replacement

balance :

2AgNO₃ (aq) + Cu (s)⇒Cu(NO₃)₂ (aq) + 2Ag (s)

3. C₃H₈O + O₂ ⇒ CO₂ + H₂O

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balance :

2C₃H₈O(l) + 9O₂(g) ⇒ 6CO₂(g) + 8H₂O(g)

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