In 1770 a Scottish physician and Chemist Daniel Rutherford performed a simple experiment with which he discovered nitrogen. Rutherford being with an empty bottle that he turned upside down in a pan of water so that the air was trapped. A buring candle was placed inside the bottle with the trapped air causing the water to rise a bit. The part of the air that seemed to "disappear" when the candle was bured was oxygen gas and the part of the air that did not "disappear" Ruthford discovered Nitrogen.

5 0

3 years ago

How many atoms are present in 20.9 g of titanium

ZanzabumX [31]

Answer:

atoms Ti = 2.193 E23 atoms

Explanation:

1 mol ≡ 6.022 E23 atoms
mm Ti = 47.867 g/mol

⇒ atoms Ti = (20.9 g Ti)×(mol/47.867 g)×(6.022 E23 atoms/mol)

⇒ atoms Ti = 2.193 E23 atoms

5 0

3 years ago

The diagram shows light interacting with an object. Which object is the light most likely striking?

Tamiku [17]

a window

Explanation:

The diagram attached that shows light interacting with an object shows that the object is most definitely a window.

The window must have been made up of glass.

The wave path completely describes refraction of waves as they cross the boundary between two medium.
The light moves from a less dense to a denser medium and this causes the velocity to slow down.
On coming from the other side, the wave rays are attenuated.

learn more:

Refraction brainly.com/question/12370040

Reflection and diffraction brainly.com/question/3183125

#learnwithBrainly

6 0

3 years ago

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