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gavmur [86]
3 years ago
7

Anyboyd please help, please, please?

Chemistry
1 answer:
In-s [12.5K]3 years ago
4 0

Answer:

Help with what?

Explanation:

You didn't give us anything to help you with.

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Bromothymol blue is an acid-base indicator that changes color around ph 7. adding a small amount of bromothymol blue to a basic
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... in neutralization reactions, for example:

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4 years ago
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In the reaction:
Ghella [55]

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The answer is D because NH4+and OH- it will be

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3 years ago
The fact that HBO2, a reactive compound, was produced rather than the relatively inert B2O3 was a factor in the discontinuation
Reil [10]

Answer:

1027.62 g

Explanation:

For B_2H_6  :-

Mass of B_2H_6  = 296.1 g

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The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

Moles= \frac{296.1\ g}{27.66\ g/mol}

Moles\ of\ B_2H_6= 10.705\ mol

From the balanced reaction:-

B_2H_6(g) + 3 O2_{(l)}\rightarrow 2 HBO_2_{(g)}+ 2 H_2O_{(l)}

1 mole of B_2H_6 react with 3 moles of oxygen

Thus,

10.705 mole of B_2H_6 react with 3*10.705 moles of oxygen

Moles of oxygen = 32.115 moles

Molar mass of oxygen gas = 31.998 g/mol

<u>Mass = Moles * Molar mass = 32.115 * 31.998 g = 1027.62 g</u>

8 0
3 years ago
Can anyone please help me!! What is d. Beat the eggs?? A physical or a chemical change?
Stells [14]

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6 0
3 years ago
Which of these is found in the energy levels of an atom?
Paul [167]

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Electrons

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