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bonufazy [111]
2 years ago
15

What happens to the particles of a substance when thermal energy is added to the substance?

Chemistry
1 answer:
Sergio039 [100]2 years ago
8 0
The answer is B) particles move faster.
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Robidium and cesium have similar chemical properties because in the ground it states the atoms of both elements each have
anzhelika [568]
It would be one electron in the outermost shell. Hope this helps!
5 0
2 years ago
How many grams of copper (II) nitrate would be produced from 0.80 g of copper metal reacting with excess nitric acid?
zaharov [31]

Answer:

m_{Cu(NO_3)_2}=2.36 gCu(NO_3)_2

Explanation:

Hello!

In this case, since the chemical reaction between copper and nitric acid is:

2HNO_3+Cu\rightarrow Cu(NO_3)_2+H_2

By starting with 0.80 g of copper metal (molar mass = 63.54 g/mol) and considering the 1:1 mole ratio between copper and copper (II) nitrate (molar mass = 187.56 g/mol) we can compute that mass via stoichiometry as shown below:

m_{Cu(NO_3)_2}=0.80gCu*\frac{1molCu}{63.54gCu} *\frac{1molCu(NO_3)_2}{1molCu} *\frac{187.56gCu(NO_3)_2}{1molCu(NO_3)_2} \\\\m_{Cu(NO_3)_2}=2.36 gCu(NO_3)_2

However, the real reaction between copper and nitric acid releases nitrogen oxide, yet it does not modify the calculations since the 1:1 mole ratio is still there:

4HNO_3+Cu\rightarrow Cu(NO_3)_2+2H_2O+2NO_2

Best regards!

7 0
3 years ago
Which chemical in the atmosphere of Titan (a moon of Saturn) plays the same role that water plays on the Earth by producing "rai
ololo11 [35]

Answer:

Methane (CH₄)

Explanation:

Titan refers to the largest moon of the planet Saturn, comprising a very dense atmosphere. This moon is primarily comprised of nitrogen gas, which is similar to the conditions in earth. It is extremely cold having a temperature of about ₋180°C, as a result of which it is difficult for the liquid water to exist.

Acid rain is a type of precipitation that occurs in the earth and it results in the release of a certain amount of methane gas (CH₄). Similarly, there also occurs precipitation in Titan but it releases CH₄ instead of water.  This methane is responsible for the increasing amount of temperature.

Thus, methane is a chemical that is present int the Titan's atmosphere, and it plays a similar role as in earth, the water plays by forming snow, rain, and ice.

7 0
3 years ago
What is the mass of 2.30 ×1022 molecules of NaOH
viva [34]
Molar mass of NaOH = 39.997 g/mol

39.997 g  ---------- 6.02x10²³ molecules
   g --------------- 2.30x10²² molecules

mass = 2.30x 10²² * 39.997 / 6.02x10²³

mass = 9x199^24 / 6.02x10²³

mass = 15.280 g

hope this helps!

4 0
3 years ago
Mica peels apart in parallel sheets because the chemical bonds between sheets are weak and the chemical bonds within sheets are
Makovka662 [10]
The answer is supposed to be true
7 0
2 years ago
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