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Talja [164]
3 years ago
15

In the compound AbO3, the ratio of aluminum to oxygen is

Chemistry
1 answer:
jasenka [17]3 years ago
3 0
The compound is Al2O3. The ratio of aluminum to oxygen is 2:3.
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Menciona 3 elementos que puedan formar alótropos distintos al carbono
GalinKa [24]

Answer:

tierra agua fuego

Explanation:

espero que esto ayude

8 0
3 years ago
In the cathode ray experiment, the cathode ray is seen to move from the negative disk to the positive disk. What kind of subatom
Tomtit [17]

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8 0
3 years ago
The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces
Oxana [17]

Answer:

1. NaN₃(s) → Na(s) + 1.5 N₂(g)

2. 79.3g

Explanation:

<em>1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN₃) into solid sodium and gaseous dinitrogen.</em>

NaN₃(s) → Na(s) + 1.5 N₂(g)

<em>2. Suppose 43.0L of dinitrogen gas are produced by this reaction, at a temperature of 13.0°C and pressure of exactly 1atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits.</em>

First, we have to calculate the moles of N₂ from the ideal gas equation.

P.V=n.R.T\\n=\frac{P.V}{R.T} =\frac{1atm.(43.0L)}{(0.08206atm.L/mol.K).286.2K} =1.83mol

The moles of NaN₃ are:

1.83molN_{2}.\frac{1molNaN_{3}}{1.5molN_{2}} =1.22molNaN_{3}

The molar mass of NaN₃ is 65.01 g/mol. The mass of NaN₃ is:

1.22mol.\frac{65.01g}{mol} =79.3g

5 0
3 years ago
What is produced when calcium reacts with fluorine in a synthesis reaction?
Thepotemich [5.8K]
C is the correct answer (CaF2) (sorry dont have subscript)

Explanation: synthesis reaction forms a compound and calcium reacting with fluorine produces Calcium Fluoride (CaF2) chemical name
4 0
4 years ago
Read 2 more answers
Classify the same processes as exothermic or endothermic.
Inessa [10]

Answer:

1.endothermic

2.exothermic

3.exothermic

8 0
3 years ago
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