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Vadim26 [7]
2 years ago
14

A balloon is filled to a volume of 700 mL at a pressure of 1.2 atm. The volume is increased 950 ml, what will be the new pressur

e?
Write down all the givens from the problem.

Are all units in the form required to use the generic equation? If not, then show your conversion in the next question.

Show your conversion work

Write the generic equation for this problem. The only variable that is lowercase is for the number of moles – the rest are capitalized. Do not add any spaces between letters and symbols or numbers.

Substitute your numbers into the generic equation. This is where you’re sure you show your math work step-by-step. solve the problem

Enter the numeric portion of your answers here rounded to the nearest hundredth.

Enter the unit of your answer here. Enter it as a symbol not words spelled out if your unit should be capitalized make sure to enter it in that form the answer will be case sensitive
Chemistry
1 answer:
konstantin123 [22]2 years ago
3 0
P1V1 = P2V2

1.2ATM*(.7 L) = V2 * .95L

V2 = 0.884 Liters or 884.21 ml
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Solid aluminum metal reacts with aqueous zinc chloride to produce solid zinc metal and aqueous aluminum chloride
yuradex [85]

Answer:

2Al + 3ZnCl₂    →    3Zn + 2AlCl₃

Explanation:

Chemical equation:

Al + ZnCl₂    →    Zn + AlCl₃

Balanced Chemical equation:

2Al + 3ZnCl₂    →    3Zn + 2AlCl₃

This is the example of single displacement reaction. Al displace the zinc and form aluminium chloride and zinc metal.

There are two Al three zinc and six chlorine atoms on both side of equation so it is correctly balanced.

Thus it completely follow the law of conservation of mass.

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by french chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

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3 years ago
As water molecules move through the hydrological cycle, water both gains and loses energy. In which case would the water be losi
Triss [41]
Condensation. I just completed the test
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3 years ago
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The bonds in the reactants of Figure 7-3 contained 372 kJ of chemical energy and the bonds in the products contained 350 kJ of c
satela [25.4K]

Answer: 22 kJ amount of energy is released in the following reaction.

Explanation: There are two types of reaction on the basis of amount of heat absorbed or released.

1. Endothermic reactions: These are the type of reactions in which reactants absorb heat to form the products. The energy of the reactants is less than the energy of the products.

2. Exothermic reactions: These are the type of reactions in which heat is released from the chemical reactions. The energy of the products is less than the reactants.

Sign convention for \Delta H: This value is negative for exothermic reactions and positive for endothermic reactions.

For the given chemical reaction,

Energy of the products is less than the energy of the reactants, Hence, this reaction will be a type of exothermic reaction and energy will be released during this chemical change.

Amount of energy released = (350 - 372) kJ = -22kJ

Negative sign symbolizes the energy is being released. So, 22 kJ amount of energy is released in the following reaction.

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3 years ago
Which historical era was marked the beginnings of European explorations, conquests of the Americas, trans-Atlantic slave trade a
Tomtit [17]

Answer : Option C) Early modern era


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What is the percent error of a length measurement of .454cm if the correct value is 0.546cm?
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17% is the percent error

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