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lys-0071 [83]
3 years ago
15

describe the contributions of hans christian oersted to our inderstanding of magnetism and electricity

Chemistry
2 answers:
Marina CMI [18]3 years ago
7 0
He made a new approach when he discovered magnetism and electricity.
harkovskaia [24]3 years ago
7 0

Answer:

here are the choices

Explanation:

He discovered electromagnetic induction after seeing a compass needle deflected by a flowing electric current.

He discovered electromagnetism after seeing a compass needle deflected by a flowing electric current.

He discovered electromagnetic induction after seeing a changing magnetic field generate an electric current.

He discovered electromagnetism after seeing a changing magnetic field generate an electric current.

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The densities of copper, silver, iron, and magnesium are in that order. You are given grams of each metal. Which one has the lar
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Density is the ratio of mass to volume. The substance with the lowest density has the largest volume. The volume of magnesium will be the largest.

<h3>What is density?</h3>

Density is the mass per volume of the substance. It is denoted by the Latin letter rho (ρ) or D. It is the division of the mass in kilograms to the volume in cubic meters.

The relation of the density is inversely proportional to the volume and when the order is given in increasing order of density then magnesium will have the largest volume as it has the least density.

Therefore, magnesium has the largest volume.

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6. What is true about Calcium (Ca)?
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C. naturally uncombined with other elements.

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A flask with a volume of 125.0mL contains air with a density of 1.269 g/L. What is the mass of the air contained in the flask?
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<span>In order to solve this problem you must first make sure all your numbers are in like terms. From the density value you can see that it is grams per liter. The first conversion you must do in convert the 125.0 mL value to Liters which you would do by dividing by 1000 because 1 liter is equal to 1000 mL. 125.0 divided by 1000 is 0.125 Liter. Now you will use the density equation to solve. The density equation is density is equal to mass divided by volume. Plug in your known numbers for density and volume. Then solve for mass. So Density (1.269 g/l is equal to mass divided by volume (.125 Liter) You must rearrange the equation to multiple density by volume which is 1.269 times 0.125 which will give you 0.1586. Because the Liters cancel each other out, the answer's unit will be grams. Your final answer is 0.1586 grams.</span>
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The radioactive isotope I-131 is used in
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