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Lyrx [107]
2 years ago
15

Which element(s) are not balanced in this equation?

Chemistry
1 answer:
poizon [28]2 years ago
6 0
The correct response is A. Only the Fe is unbalanced.
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1. How does protein substance in animal hide or skin be preserved from bacterial infection during tanning?
anyanavicka [17]

Answer:

1. By being cured

2. To remove the silica impurities from haemetite

3. The cathode will be bronze while the anode will be the silver

4. i) Wastes from industrial processes

ii) Waste waters and sewage

iii) Dumping of wastes into water bodies

5) Three methods to reduce air pollution includes

i) Promote the use of recycled of materials

ii) Promote and use renewable sources of energy

iii) Limit activities that involve the burning of fuels such as encouraging the use of mass transit buses, preventing the occurrence of fires in forests

Explanation:

1. In order to preserve the proteins in the hides of animal skin from putrefaction they are cured with salt to remove by, osmotic pressure difference,  the water content present in the animal hide

2. To remove the silica impurities from haemetite

The calcium oxide obtained from the decomposition of calcium carbonate undergoes a chemical reaction with the sand impurities in the mineral, haematite, to form calcium silicate or s l a g

3. Electroplating involves charging the metal to be electroplated negatively that is making it the cathode and placing it in an electrolytic cell that has a solution of the metal ions containing the metal salts

Therefore, the bronze medal to be plated with silver will be made the cathode while the silver from which we obtain the silver ions will be made the anode

4. Three causes of water pollution includes

Wastes from industrial processes

Waste waters and sewage

Dumping of wastes into water bodies

5.  The major causes of air pollution are the oxides produced from the combustion of fossil fuels such as sulfur dioxide, carbon dioxide, carbon monoxide as well as chemical gases from industrial processes.

8 0
3 years ago
8. A party-supply store sells a helium-gas
MatroZZZ [7]

Answer:

P₂= 116.7 atm

Explanation:

Here apply the Boyle's law equations that states :at constant temperature the volume of a dry mass of a gas is inversely proportional to its pressure.

This is simplified as;

P₁V₁=P₂V₂ where P is pressure and V is volume

Given that;

P₁=1

V₁=1.81 m³

P₂=?

V₂=1.55*10^-2 m³

Apply the formula

1*1.81 =P₂*1.55*10^-2 m³

1.81/1.55*10^-2  =P₂

P₂= 116.7 atm

7 0
2 years ago
To make a smore, 2 graham crackers, a piece of chocolate, and a marshmallow are needed. You have 5 graham crackers, 7 pieces of
vfiekz [6]
Limiting Reactant - The reactant in a Chemical Reaction that limits the amount of product that can be formed. 

Excess Reactant - The reactant in a chemical reaction that remains when a reaction stops when the limiting reactant is completely consumed. 

Theoretical Yield - The quantity of a product obtained from the complete conversion of the limiting reactant in a Chemical reaction.  

I hope this helped make your question easier ^_^
7 0
2 years ago
Read 2 more answers
If you have 1 proton and 2 electrons, what is the overall charge of the ion?
marysya [2.9K]
The overall charge will be negative 1
4 0
3 years ago
Which orbitals from a pi bond?
QveST [7]

Answer:

B. The s orbital and two p orbitals

Explanation:

8 0
3 years ago
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