3 years ago

Provide two examples of a metal oxide and explain what they are used for

Chemistry

1 answer:

vekshin13 years ago

3 0

Magnesium Oxide - Used as an electrical insulator.

Calcium Oxide - Used for water purification.

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How many nitrate ions are in 2 mol of iron (II) nitrate

Allisa [31]

Answer:

Two

Explanation:

Nitrate has a charge of negative 1 and the Iron (II) tells us the iron in that formula has a charge of +2, so in order for the iron to have to equal positive two, there has to be two negative. Since on nitrate ion is -1, you need two to make -2.

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2 years ago

An organic chemist measures the temperature T of a solution in a reaction flask. Here is the result. T = 149.206 °C Convert T to

jolli1 [7]

<u>Answer:</u> The temperature of the solution in Kelvins is 422.356 K

<u>Explanation:</u>

Temperature is defined as the measure of coldness or hotness of a body. It also determines the average kinetic energy of the particles in a body.

This term is expressed in degree Celsius, degree Fahrenheit and Kelvins. All these units are interchangeable.

The S.I unit of temperature is Kelvins.

We are given:

Temperature of a solution = $149.206^oC$

Conversion used to convert degree Celsius and Kelvins is:

$T(K)=[273.15+T(^oC)]$

$T(K)=273.15+149.206\\T(K)=422.356K$

Hence, the temperature of the solution in Kelvins is 422.356 K

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3 years ago

10. A sample of an unknown composition was tested in a laboratory. The sample could not be broken down by

damaskus [11]

Answer:

it would be an element because its an element

Explanation:

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3 years ago

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When is the potential energy between two atoms at zero?

ExtremeBDS [4]

Answer:

When two atoms are very far apart, the potential energy approaches zero.

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3 years ago

What do you think would happen to a light bulb in the open circuit?

densk [106]

Is there choices to this question? cant answer it without choices

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2 years ago