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GaryK [48]
3 years ago
12

Which statements correctly define factors that contributed to the decline of the Roman Empire? Choose all answers that are corre

ct. A. Rome could not grow enough food and maintain a large enough army to fend off barbarian tribes. B. Incompetent rulers placed huge tax burdens on the Roman citizens. C. A long period of peace throughout the empire led to a sense of overconfidence in Rome. D. The empire split into three separate units, each ruled by a consul.
Chemistry
2 answers:
Natali5045456 [20]3 years ago
6 0

Answer:

a and B I got an 100% and I'm getting a 99.7 in history k12

Explanation:

stealth61 [152]3 years ago
3 0
B. should be the coorect one, let me know I'm I'm wrong!
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What is the molarity of a solution which contains 0.88 g of barium chloride in 120.0 mL of solution
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Answer:00.73

Explanation:

Divide 0.88g by 120.0ml

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10 POINTS The equations are not balanced. Which equation would have the same coefficients in the same order as 2CO2 + 3H20 C2H6O
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Answer:

Al + FeO → Al2O3 + Fe

Explanation:

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If an automobile air bag has a volume of 11.6 ll , what mass of nan3nan3 (in gg ) is required to fully inflate the air bag upon
Tresset [83]

22.3 g of NaN₃ are required to fully inflate an airbag of 11.6 L at STP.

To find the mass, the given data was,

Volume = 11.6 Liters

<h3>What is decomposition reaction?</h3>

A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products.

In airbags, sodium azide decomposes to form sodium and nitrogen gas, which inflates the bag. The decomposition reaction is:

2 NaN₃ ⇒ 2 Na + 3 N₂

We can calculate the mass of NaN₃ needed to produce 11.6 L of N₂ at STP, using the following relations.

  • At STP, 1 mole of N₂ occupies 22.4 L.
  • The molar ratio of N₂ to NaN₃ is 3:2.
  • The molar mass of NaN₃ is 65.01 g/mol.

Substituting all the known values to find the volume,

11.6 × ( 1 / 22.4) × ( 2/3) × ( 65.01 / 1)

= 22.4 g.

22.4 g of NaN₃ are required to fully inflate an airbag of 11.6 L at STP.

Learn more about decomposition reaction,

brainly.com/question/8009068

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2 years ago
GIVING BRAINLIEST HURRY
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Am I closing the right one? Somebody help!
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Answer:

Yes you are choosing the right one because the sodium hydroxide with sulfuric acid is the correct answer

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