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Wewaii [24]
3 years ago
11

Why would a scientist only use observations to formulate a theory rather than follow the scientific method?

Chemistry
1 answer:
Alenkinab [10]3 years ago
7 0

Answer: Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test theories

Explanation:

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When a small amount of hydrogen gas mixes with nitrogen gas, hydrogen is the
Verdich [7]

Answer:

solvent

Explanation:

4 0
3 years ago
When 5.0 moles of butane react completely?
Korolek [52]

Moles of Carbondioxide-CO₂ produced = 20 moles

<h3>Further explanation</h3>

The combustion of hydrocarbons with excess oxygen will produce carbon dioxide and water(CO₂+H₂O), whereas if there is not much oxygen, carbon monoxide and water(CO+H₂O) will be obtained.

The reaction coefficient in a chemical equation shows the mole ratio of the reacting compounds

Reaction (combustion of butane) :

<em>2C₄H₁₀+13O₂⇒8CO₂+10H₂O</em>

Butane reacts completely, then Butane is the limiting reactant and oxygen as the excess reactant, so the moles of Carbon dioxide are based on the butane moles as the limiting reactant.

moles of butane - C₄H₁₀ = 5 moles

From the reaction, the mol ratio of C₄H₁₀ and CO₂ : 2 : 8, so mol CO₂ :

\tt \dfrac{8}{2}\times 5~moles=20~moles

7 0
3 years ago
Please answer I need help <br><br> Thanks<br><br> For 100
Bumek [7]
The the poles because that where the lines start 
6 0
3 years ago
Read 2 more answers
What 2 chemicals react together during photosynthesis
Nitella [24]

Answer:

The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas. The single chemical equation represents the overall process of photosynthesis.

Explanation:

Definition: the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Hope this helps!

Can I get brainliest?

5 0
4 years ago
How many moles of carbon dioxide are produced when 23.0 g of C3H2O3 is burned during the
Mars2501 [29]

Moles of Carbon dioxide : 0.75

<h3>Further explanation</h3>

Given

23 g C₃H₈O₃

Required

Moles of Carbon dioxide

Solution

Reaction

2C₃H₈O₃ + 7O₂ → 6CO₂ + 8H₂O

mol C₃H₈O₃ :

= mass : MW

= 23 g : 92,09382 g/mol

= 0.24975

From the equation, mol ratio of C₃H₈O₃ : 3CO₂ = 1 : 3, so mol CO₂ :

= 3/1 x mol C₃H₈O₃

= 3/1 x 0.24975

= 0.74925≈0.750 mol

5 0
3 years ago
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