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BabaBlast [244]
3 years ago
9

30

Chemistry
1 answer:
Rzqust [24]3 years ago
5 0
Im confused cause of how it looks
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How many molecules are in<br> 6.0 moles of methane (CH4)?
katen-ka-za [31]

Answer:

{ \tt{1 \: mole = 6.02 \times  {10}^{23} \: molecules }} \\ { \tt{6.0 \: moles = (6 \times 6.02 \times  {10}^{23}) \: molecules }} \\  = { \bf{3.612 \times  {10}^{24}  \: molecules}}

8 0
3 years ago
A substance has a high melting point and conducts electricity in the liquid phase The is substance is
posledela

Answer:

oxygen

Explanation:

?

3 0
3 years ago
A common car battery consists of six identical cells each of which carries out the reaction: Pb + PbO2 + 2HSO4- + 2H+ → 2PbSO4 +
docker41 [41]

Answer:

The correct answer is 4.58 grams.

Explanation:

Based on the Faraday's law of electrolysis, at the time of electrolysis, the amount of deposited substance is directly equivalent to the concentration of the flow of charge all through the solution. If current, I, is passed for time, t, seconds and w is the concentration of the substance deposited, then w is directly proportional to I*t or w = zIt (Here z refers to the electrochemical equivalent or the amount deposited when 1 C is passed).  

For the reaction, n * 96500 C = molar mass

1C = molar mass/n*96500 = Equivalent wt / 96500

w = Equivalent wt / 96500 * I * t

In the given reaction,  

Pb + PbO2 + 2HSO4- + 2H+ → 2PbSO4 + 2H2O, n = 2, the current or I drawn is 350 A, for time, t 12.2 seconds.  

Now putting the values in the equation we get,  

w = 207.19 / 2 * 96500 * 350 * 12.2 ( The molecular weight of Pb is 207.19 and the equivalent weight of Pb is 207.19 / 2)

w = 4.58 gm.  

6 0
4 years ago
Which statement explains the kinetic theory of heat?
Naddik [55]

The theory that states that heat is the result of the movement of particles in a system.

7 0
3 years ago
Name four products of incomplete combustion<br><br> One :<br> Two :<br> Three :<br> Four :
melamori03 [73]

Answer:

Carbon Monoxide / Carbon Dioxide / Sulfur and Nitrogen Dioxide

Explanation:

8 0
4 years ago
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