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3 years ago

What three things happen in order for a chemical reaction to occur?

1 answer:

4 0

Three things that should happen for a chemical reaction to occure :
1. Position of electrons must change
2. Chemical bonds must be formed and broken between atoms and
3. No changes should happen to the nuclei

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Air pollution that forms from the interaction between chemicals in the air and sunlight

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Answer:

This process is called Photochemical smog

Explanation:

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3 years ago

Which of the following characterizes an ionic bond?

velikii [3]

Answer:

option A

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2 years ago

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Coke is an impure form of carbon that is often used in the in- dustrial production of metals from their oxides. If a sample of c

steposvetlana [31]

Answer:

The mass of coke needed to react completely with 1.0 ton of copper(II) oxide is 0.794 Ton.

Explanation:

$2CuO+C\rightarrow 2Cu+CO_2$

1 Ton = 907185 grams

Mass of copper oxide = 1.0 Ton = 907185 grams

Moles of copper oxide = $\frac{907185 g}{79.55 g/mol}=11,403.95 moles$

According to reaction, 2 moles of copper oxide reacts with 1 mole of carbon.

Then 11403.95 moles of copper oxide will react with:

$\frac{1}{2}\times 11403.95 mol=5,701.98 mol$ of carbon

Mass of 5,701.98 moles of carbon:

$5,701.98 mol\times 12 g/mol=68,423.75 g$

Mass of coke = x

Mass of carbon = 68,423.75 g

Percentage of carbon in coke = 95%

$95\%=\frac{68,423.75 g}{x}\times 100$

$x=720,250.09 g=0.794 Ton$

The mass of coke needed to react completely with 1.0 ton of copper(II) oxide is 0.794 Ton.

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3 years ago

Which type of radioactive decay occurs in the following reaction?

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This one is beta decay (the -1 subscript tells us that)

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3 years ago

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A reaction was performed, and the dichloromethane solvent was dried by adding magnesium sulfate drying agent. When the reaction

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3 years ago