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AlexFokin [52]
3 years ago
13

You heat a piece of iron from 200 to 400 K. What happens to the atoms’ energy of random motion?

Chemistry
1 answer:
Vilka [71]3 years ago
5 0
Smash because. X x c. Cc d.
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HELP! 10 pts!! || Which does NOT describe a water molecule?
AVprozaik [17]

Answer:

C.)

Explanation:

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5 0
3 years ago
C₇H₆O₂ + O₂ -->CO₂ +H₂O Find the chemical reaction
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Air

Explanation:

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How many chlorine atoms will correctly complete the data table ?
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5 0
2 years ago
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How many moles of nitrogen gas are there in 16.8 L of this gas at STP?
sweet-ann [11.9K]
According to Avogadro's Law, same volume of any gas at standard temperature and pressure will occupy same volume. And one mole of any Ideal gas occupies 22.4 dm³ (1 dm³ = 1 L).

Data Given:

                  n = moles = ?
                  V = Volume = 16.8 L

Solution:
               
As 22.4 L volume is occupied by one mole of gas then the 16.8 L of this gas will contain....

                           = ( 1 mole × 16.8 L) ÷ 22.4 L
                    
                           = 0.75 moles

Result:
           
16.8 L of Nitrogen gas will contain 0.75 moles at standard temperature and pressure.
4 0
3 years ago
Does a displacement reaction take place in 'magnesium + lead nitrate'? and if so why?
cestrela7 [59]

Answer:

Maybe or maybe not (not sure)

Explanation:

A displacement reaction is a type of reaction where one element is displaced by another from a compound.

In the case of magnesium and lead nitrate, magnesium is more reactive than lead. Therefore, it will displace lead from lead nitrate to form magnesium nitrate and lead.

The reaction can be represented as:

Mg(s) + Pb(NO3)2(aq) → Mg(NO3)2(aq) + Pb(s)


Another answer could be;

A displacement reaction does not take place in 'magnesium + lead nitrate' because magnesium is more reactive than lead.

5 0
1 year ago
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