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IceJOKER [234]
2 years ago
8

Balance the following chemical equations

Chemistry
1 answer:
nexus9112 [7]2 years ago
6 0

Explanation:

  1. 2Na + I₂ → 2NaI
  2. 2KClO₃ → 2KCl + 3O₂
  3. K₃PO₄ + 3HCl → 3KCl + H₃PO₄

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Help, please? will mark brainliest​
alexira [117]

Answer:

Sulfur would gain electrons

Explanation:

Atoms want to have a complete out valence shell and because sulfur only needs 2 more electrons to complete the outer shell it would take 2 more.

8 0
3 years ago
What is the meaning of nucleus<br>​
IrinaVladis [17]

the nucleus is an organelle containing the cell's chromosomes

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2 years ago
A 0.1326 g sample of magnesium was burned in an oxygen bomb calorimeter. the total heat capacity of the calorimeter plus water w
Sladkaya [172]

Answer: Th enthalpy of combustion for the given reaction is 594.244 kJ/mol

Explanation: Enthalpy of combustion is defined as the decomposition of a substance in the presence of oxygen gas.

W are given a chemical reaction:

Mg(s)+\frac{1}{2}O_2(g)\rightarrow MgO(s)

c=5760J/^oC

\Delta T=0.570^oC

To calculate the enthalpy change, we use the formula:

\Delta H=c\Delta T\\\\\Delta H=5760J/^oC\times 0.570^oC=3283.2J

This is the amount of energy released when 0.1326 grams of sample was burned.

So, energy released when 1 gram of sample was burned is = \frac{3283.2J}{0.1326g}=24760.181J/g

Energy 1 mole of magnesium is being combusted, so to calculate the energy released when 1 mole of magnesium ( that is 24 g/mol of magnesium) is being combusted will be:

\Delta H=24760.181J/g\times 24g/mol\\\\\Delta H=594244.3J/mol\\\\\Delta H=594.244kJ/mol

4 0
3 years ago
At a fixed volume, a four-fold increase in the temperature of a gas will lead to _______ in pressure.
aliina [53]

Answer:

Increase in pressure

Explanation:

The rise in temperature will increase the pressure of the gas.

6 0
3 years ago
Read 2 more answers
4. An object's resistance to any change in its motion is the ___ of the object. (1 point)
lawyer [7]

Answer:

Acceleration

Explanation: Force is how much one thing is being applied so it is not that and inertia is something sitting still so therefore using process of elimination, it is acceleration.

8 0
3 years ago
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