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liberstina [14]
3 years ago
9

Work out the answers to: a) 8.2 x 13 b) 0.8 x 5.7 What’s the answer?

Mathematics
1 answer:
Assoli18 [71]3 years ago
4 0
A.) 106.6
B.) 4.56
..........,.,...,,,
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What type of reaction is shown below? Check all that apply. 2Na + Cl2 → 2NaCl synthesis decomposition combustion
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Answer: This is a type of Synthesis reaction.

Explanation:

  • Synthesis reaction is a type of chemical reaction in which two or more substances combine to form a single substance.

A+B\rightarrow AB

  • Decomposition reactions are a type of chemical reactions in which a substance breaks down into two or more substances.

AB\rightarrow A+B

  • Combustion reaction is a type of chemical reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide and water.

Hydrocarbon+O_2\rightarrow H_2O+CO_2

For the given reaction:

2Na(s)+Cl_2(g)\rightarrow 2NaCl

Here, 2 substances are combining together to form a single substance. Hence, it is considered as a synthesis reaction.

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3 years ago
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<h3>How to calculate the height?</h3>

The question is to calculate the height of the building.

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1.55/2.75 = x/9.45

x = (1.55 × 9.45)/2.75

x = 5.33 m

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Dennis_Churaev [7]

Answer:

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Step-by-step explanation:

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