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Alex
3 years ago
5

How does the catalyst affect the magnitude of the activation energy?

Chemistry
1 answer:
Sati [7]3 years ago
5 0

Answer:

speeds up

Explanation:

catalysts decrease the activation energy required for a reaction to proceed

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Upon decomposition, a sample of sodium bicarbonate produces 0.0118 g of sodium carbonate, Na2CO3. How many grams of water does i
Naily [24]

Answer:

2.00 × 10⁻³ g

Explanation:

Step 1: Write the balanced decomposition reaction

2 NaHCO₃ ⇒ Na₂CO₃ + CO₂ + H₂O

Step 2: Calculate the moles corresponding to 0.0118 g of Na₂CO₃

The molar mass of Na₂CO₃ is 105.99 g/mol.

0.0118 g × 1 mol/105.99 g = 1.11 × 10⁻⁴ mol

Step 3: Calculate the moles of H₂O produced with 1.11 × 10⁻⁴ moles of Na₂CO₃

The molar ratio of Na₂CO₃ to H₂O is 1:1. The moles of H₂O produced are 1/1 × 1.11 × 10⁻⁴ mol = 1.11 × 10⁻⁴ mol.

Step 4: Calculate the mass corresponding to 1.11 × 10⁻⁴ moles of H₂O

The molar mass of H₂O is 18.02 g/mol.

1.11 × 10⁻⁴ mol × 18.02 g/mol =  2.00 × 10⁻³ g

7 0
3 years ago
La oxidación es cuando??
Pachacha [2.7K]
Los dos átomos operan simultáneamente
5 0
3 years ago
A scientist should be willing to change his or her theory if the evidence does not support it. True or False
Stels [109]

Answer:

Yes, they can.

Explanation:

Science is all about experimentation. If we couldn't redo things, we'd never get anywhere.

6 0
3 years ago
Read 2 more answers
Which are stronger, ionic bonds or covalent bonds?
lawyer [7]

Answer:

ionic bonds

Explanation:

ionic bonds result from the mutual attraction between oppositely charged ions. They tend to be stronger than covalent bonds due to the coulombic attraction between ions of opposite charges.

4 0
2 years ago
How does hydrogen and oxygen form water
dezoksy [38]

Answer:     In theory, it's easy to make water from hydrogen gas and oxygen gas. Mix the two gases together, add a spark or sufficient heat to provide the activation energy to start the reaction, and presto—instant water. ... When the chemical bonds re-form to make water, additional energy is released, which propagates the reaction.

Explanation:

6 0
3 years ago
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