Can someone help please I will mark brainylest

Chemistry

1 answer:

Kryger [21]3 years ago

7 0

Answer:10,500

Explanation:

Multiply all the following except where it says mw=70.9, then divide 70.9 by the sum of multiplying!!

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How can a montain range cause a large dessert?

Simora [160]

Explanation:

An extensive mountain range can cause a large desert area.

Mountains are usually geologic features that have heights that are greater than 600m.

Due to towering heights of mountains, they have serious effect on the weather and climatic pattern in an area.
Air masses that are warm are usually moisture laden.
As they try to cross the steep slopy side of one mountain, their pressure reduces and they drop the vapor in them causing rainfall.
The cold wind moves to the other side.
This side is called the leeward side.
Cold air is dry and lacks moisture.
This can lead to the formation of a desert.

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3 0

4 years ago

Please check what I have and help!!

steposvetlana [31]

Moles = mass(g) / ar

Reconfigure the eqn to
Mass(g) = Moles × ar

Imput the info you have and the ar of Mn and you should be able to get your ans. Sorry, i dont have a calculator with me.

8 0

3 years ago

A chemical reaction has an increase in entropy and a decrease in enthalpy. what is known about the spontaneity of the reaction?

Kobotan [32]

I think the correct answer would be the first option. A chemical reaction that has an increase in entropy and a decrease in enthalpy is spontaneous at high temperatures. This reaction absorbs heat for it to occur so supplying heat to it is important.

4 0

3 years ago

Read 2 more answers

Determine what the spin state of each complex will be using the spectrochemical series along with your chemical intuition. Pleas

seropon [69]

Answer:

A) high spin complex

B) low spin complex

Explanation:

A) VCI3(H20)3 is a high spin complex and this is because the complex has a weak field ligands all . this weak field ligands makes it impossible for pairing to take place

B) Fe(NH3)23 is a low spin complex and this is because the complex is made up of strong field ligands, this strong field ligands makes it possible for paring to take place

note : Ligands in which its donor atoms are ; Nitrogen,phosphorous or carbon are considered strong ligands

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3 years ago

Gallium oxide, Ga.Oy, forms when gallium is combined with oxygen. A 1.25 g of Ga is allowed to react with excess oxygen and 1.68

mrs_skeptik [129]

Answer : The chemical formula of a compound is, $Ga_2O_3$