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Mademuasel [1]
3 years ago
13

the chemical formula of potassium dichromate is K2Cr2O7.state the ratio of potassium, chromium and oxygen atom in the compounds

Chemistry
1 answer:
Len [333]3 years ago
3 0

Answer:

Potassium Dichromate is an orange to red colored, crystalline, inorganic compound that emits toxic chromium fumes upon heating. Potassium dichromate is highly corrosive and is a strong oxidizing agent. This substance is used in wood preservatives, in the manufacture of pigments and in photomechanical processes, but is mainly replaced by sodium dichromate. Potassium dichromate primarily affects the respiratory tract causing ulcerations, shortness of breath, bronchitis, pneumonia and asthma but can also affect the gastrointestinal tract, liver, kidneys and immune system. This substance is a known human carcinogen and is associated with an increased risk of developing lung cancer and cancer of the sinonasal cavity. (NCI05)

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Suppose the plates beneath Earth's surface stopped moving.What do you think would happen?Explain your answer.
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Insects often get stuck in the sap of ancient trees. The sap along with the insect inside harden forming a fossil. What kind of
shepuryov [24]
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4.96 megameters to inches show work
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3 years ago
Calculate the number of atoms in 2.8 moles of silicon atoms
IceJOKER [234]

Answer:

<h2>1.686 × 10²⁴ atoms</h2>

Explanation:

The number of silicon atoms can be found by using the formula

<h3>N = n × L</h3>

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 2.8 × 6.02 × 10²³

We have the final answer as

<h3>1.686 × 10²⁴ silicon atoms</h3>

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