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Nikitich [7]
3 years ago
15

Hi question, what number should I change the 9 to so it's balanced?

Chemistry
1 answer:
Delicious77 [7]3 years ago
6 0

Answer:

3

Explanation:

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What type of fuel does a nuclear power plant use to generate steam
AlekseyPX
They use Uranium fuel, consisting of solid ceramic pellets, to produce electricity through a process called fission. Nuclear power plants obtain the heat needed to produce steam through a physical process. This process, called fission, entails the splitting of atoms of uranium in a nuclear reactor.

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What type of cleaning agent should be used to clean a laminar flow hood?
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The type of cleaning agent that should be used to clean a laminar flow hood is 70% Isopropyl Alcohol.

Isopropyl alcohol is mixed with water for use as a rubbing-alcohol antiseptic. It is also utilized in aftershave creams, hand lotions, and other cosmetics. In enterprise, it is used as a less expensive solvent for cosmetics, drugs, shellacs, and gums, in addition to denaturing ethanol (ethyl alcohol).

Isopropyl alcohol is a colorless, flammable chemical compound with a robust alcoholic smell. As an isopropyl institution related to a hydroxyl group, it's far the handiest example of a secondary alcohol, wherein the alcohol carbon atom is connected to 2 other carbon atoms.

Isopropyl alcohol is pure alcohol and is a colorless liquid with a musty, sharp odor. There are no other components in a bottle of isopropyl alcohol. through assessment, rubbing alcohol consists of isopropyl alcohol among different components, including water. maximum rubbing alcohol manufacturers incorporate 70% isopropyl alcohol.

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6 0
1 year ago
Balance the combustion reaction between octane and oxygen. 2C8H18 + O2 → CO2 + H2O
LiRa [457]

Answer: 2C8H18 + 25O2 -> 16CO2 + 18H2O

Explanation:

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2 years ago
Why is the organization of the periodic table by physical properties not very useful?
OverLord2011 [107]

Answer:

It shows no regular pattern

Explanation:

Physical properties of an element are those we can observe and feel with our senses. Also, the use special equipment can enhance our perception of these properties.

  • The same physical property can be shared different number elements.
  • On the periodic table, all the elements in group 1 and 2 are metals.
  • This is not very useful for scientists whose emphasis is to distinguish one atom from the other.
  • Therefore, physical properties are highly limited in the organization of the periodic table.
7 0
3 years ago
Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of potassium sulfide and chromium
alexgriva [62]

Answer:

S²⁻(aq) + Cr²⁺(aq) ⇄ CrS(s)

Explanation:

The molecular equation includes all the species in the molecular form. Usually, it is useful to write this first to balance the equation. This is a double displacement reaction.

K₂S(aq) + Cr(NO₃)₂(aq) ⇄ 2 KNO₃(aq) + CrS(s)

The full ionic equation includes all ions and the species that no dot dissociate in water.

2 K⁺(aq) + S²⁻(aq) + Cr²⁺(aq) + 2 NO₃⁻(aq) ⇄ 2 K⁺(aq) + 2 NO₃⁻(aq) + CrS(s)

The net ionic equation includes only those ions that participate in the reaction and the species that do not dissociate in water.

S²⁻(aq) + Cr²⁺(aq) ⇄ CrS(s)

7 0
3 years ago
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