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Yuri [45]
2 years ago
11

Electronegativities of the elements Be, Mg, Ca, and Sr follow a specific trend within their group. Based on this trend, the atom

s of which element will have the least attraction for an electron?
Be
Mg
Ca
Sr
Chemistry
2 answers:
Travka [436]2 years ago
7 0

Answer:

Sr

Explanation:

vodomira [7]2 years ago
6 0

Answer:

Sr

Explanation:

Electronegativity decreases down a group, therefor the one closer to the bottom will have the least attraction for an electron

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Automotive airbags inflate when a sample of sodium azide, NaN3, is very rapidly decomposed.
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Answer:

148 g

Explanation:

Step 1: Write the balanced equation for the decomposition of sodium azide

2 NaN₃ ⇒ 2 Na + 3 N₂

Step 2: Calculate the moles corresponding to 95.8 g of N₂

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95.8 g × 1 mol/28.01 g = 3.42 mol

Step 3: Calculate the moles of NaN₃ needed to form 3.42 moles of N₂

The molar ratio of NaN₃ to N₂ is 2:3. The moles of NaN₃ needed are 2/3 × 3.42 mol = 2.28 mol.

Step 4: Calculate the mass corresponding to 2.28 moles of NaN₃

The molar mass of NaN₃ is 65.01 g/mol.

2.28 mol × 65.01 g/mol = 148 g

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Answer:

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Explanation:

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Answer:

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Explanation:

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