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anzhelika [568]
4 years ago
13

Explain why a spinning top will not remain in motion forever

Chemistry
2 answers:
AlexFokin [52]4 years ago
7 0
Friction of the air, and the surface it is on
den301095 [7]4 years ago
6 0
Gravity pulls it down I guess
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Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of hydr
xxTIMURxx [149]

Answer:

0.374 g

Explanation:

Hello,

Since both the molarity and the volume allows us to know the moles of potassium permanganate, and we already have the balanced chemical reaction, the stoichiometric procedure that is attached in the picture, is developed to substantiate the the titrated mass of hydrogen peroxide was 0.374 g.

Best regards.

6 0
4 years ago
Which is a polar molecule?
Sloan [31]
A polar molecule is when the arrangement of the atoms in molecules are unequal where one end of the molecule has a positive charge while the other end has a negative charge. Examples of a polar molecule are water, ammonia, hydrogen sulfide and sulfur dioxide. The opposite is called a nonpolar molecule. 
5 0
4 years ago
What is the density(in g/L) of a gas with a molar mass of 32.49g/mol at 2.569atm and 458K?
garri49 [273]

Answer:

2.22~g/L

Explanation:

According to the ideal gas law equation:

pV = nRT

Let's express the number of moles in terms of mass and molar mass:

pV = \frac{m}{M} RT

Let's divide both sides by volume:

p = \frac{m}{MV} RT

Notice that:

\frac{m}{V} = d

So the equation becomes:

p = \frac{dRT}{M}

Expressing density:

d = \frac{pM}{RT}

Substituting the given values:

d = \frac{2.569~atm\cdot 32.49~g/mol}{0.08206~\frac{L~atm}{mol~K}\cdot 458~K} = 2.22~g/L

7 0
4 years ago
Suppose you have 250g of gold(I) Chloride. How many grams of Gold do you have?
solniwko [45]

29.26 gram

Explanation:

No of molecules = no of mole × Avogadro's number

No of molecules = mass in gram/ molar mass × Avogadros number

Mass in gram =No of molecules×molar mass / Avogadros number

Mass in gram = 3.012 ×10^23 × 58.5/6.02×10^23

29.26 gram

4 0
3 years ago
How many moles of gas does it take to occupy 25.6 liters at a pressure of 6.2 atmospheres and a temperature of 309.3 K?
Vilka [71]

Answer:

45 moles.

Explanation:

7 0
3 years ago
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