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slega [8]
2 years ago
15

Papi munyanyo eeeeeeeeeeeeeeeeeeeeeeeeeeee

Chemistry
2 answers:
xenn [34]2 years ago
8 0

Answer:

YES YES YES YES YES YES YES YES YES YES YES YES

Goryan [66]2 years ago
8 0

Answer:

Papi munyanyo eeeeeeeeeeeeeeeeeeeeeeeeeeee

Explanation:

Papi munyanyo eeeeeeeeeeeeeeeeeeeeeeeeeeee

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A fish may have hundreds of offspring at a time and only a small number can survive. which characteristics of fish might allow t
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Well depends on what type of fish the parent is but i guess you can say:
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8 0
3 years ago
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
Kryger [21]

Answer:

1) 1.235 g.

2) 0.61 g.

Explanation:

  • From the balanced equation:

<em>Al(OH)₃ + 3HCl → AlCl₃ + 3H₂O.</em>

1.0 mol of Al(OH)₃ reacts with 3.0 moles of HCl to produce 1.0 mol of AlCl₃ and 3.0 moles of H₂O.

<em>1) How many grams of HCl can a tablet with 0.880 g of Al(OH)₃ consume? </em>

  • To calculate the amount of HCl needed to consume 0.880 g of Al(OH)₃, we need to calculate the no. of moles of Al(OH)₃:

no. of moles of Al(OH)₃ = mass/molar mass = (0.880 g)/(78.0 g/mol) = 1.13 x 10⁻² mol.

∵ Every 1.0 mol of Al(OH)₃ needs 3.0 moles of HCl to be consumed.

∴ 1.13 x 10⁻² mol of Al(OH)₃ needs (3 x 1.13 x 10⁻² = 3.385 x 10⁻² mol) of HCl.

The no. of grams of HCl = no. of moles of HCl x molar mass of HCl = (3.385 x 10⁻² mol)(36.5 g/mol) = 1.235 g.

<em>2) How much H₂O?</em>

∵ Every 1.0 mol of Al(OH)₃ produces 3.0 moles of H₂O.

∴ 1.13 x 10⁻² mol of Al(OH)₃ produces (3 x 1.13 x 10⁻² = 3.385 x 10⁻² mol) of H₂O.

<em>The no. of grams of H₂O = no. of moles of H₂O x molar mass of H₂O </em>= (3.385 x 10⁻² mol)(18.0 g/mol) = <em>0.6092 g ≅ 0.61 g.</em>

7 0
3 years ago
Which of the following statements about energy is true? I. Kinetic energy cannot be transformed into another type of energy. II.
Aleks [24]

Answer:

B

Explanation:

First Law of thermodynamics says energy of the universe is constant and can only be changed in other forms of energy

5 0
3 years ago
I need help with 8 and 9 A and B NOW PLEASE AND THANK U
rosijanka [135]
Since the fault separates the layers, we can tell that the fault occurred after all the layers were deposited.
8 0
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Imagine you leave a bottle of something toxic to humans open overnight in a sealed laboratory.
IgorC [24]

Answer:

Argument: It is not Safe

Further support to the argument is given below.

Explanation:

Solution:

Argument: It is not Safe

First of all, we all know the ideal gas law:

PV = nRT

And the Boyle's Law states that , if the pressure is increased then, volume will decrease. and if the volume is increased then pressure will decrease.

V is inversely proportional to Pressure of the gas.

So, in this case, Let's suppose we have toxic solution of methyl alcohol in the bottle which is tightly closed. It means pressure in the bottle is high, hence the volume is less.

If in this scenario someone, leave the bottle open in the laboratory and as it is given that the level of solution will drastically decrease. It means it is volatile in nature and is converted into gaseous form and we know now that the open bottle has now less pressure. Hence the volume of the gas will be higher and now it can spread to every corner of the laboratory. And it is very dangerous.

3 0
3 years ago
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