The reaction occurs in a similar way as magnesium does, but much less vigorous. Strong heating is required to make iron powder burn in oxygen. The reaction gives out a yellow showery sparks and produces a black solid. iron reacts with dilute hydrocloric acid to give iron chloride and hydrogen gas.
Answer:
Below
Explanation:
2) there are 28 protons in this isotope
The number that is on the bottom of the "stacked pair" tells you how many protons are in this isotope. It is often represented by the variable Z.
3) there are 35 neutrons in this isotope
Subtract the number of protons (28) from the top number
4) there are 28 electrons in the neutral element of Nickel
If you were to look at the period table and find Ni, you would see that its atomic number is 28. This number tells us the amount of protons and electrons there are in that element.
5) 62.9296694 atomic mass units
Just search it up (unless your teacher wants you to calculate it)
6) there are 92 protons in this isotope
Again just look at the Z value to find the proton count
7) there are 146 neutrons in this isotope
Subtract 238 - 92 = 146
8) there are 92 electrons in the neutral element of uranium
Again just look at the periodic table and find U
9) 238.0507882 atomic mass units
10) 12C or carbon 12 is more likely to bond with oxygen that 14c carbon 14
This is because 12C is more abundant at 98.93% than 14C
Hope this helps! Best of luck <3
<u>Answer:</u> The temperature of the system will be 1622 K
<u>Explanation:</u>
The equation relating the pre-exponential factor and activation energy follows:
where,
D = diffusion coefficient = 
= pre-exponential constant = 
= activation energy of iron in cobalt = 273,300 J/mol
R = Gas constant = 8.314 J/mol.K
T = temperature = ?
Putting values in above equation, we get:
Hence, the temperature of the system will be 1622 K
Answer:
Answer :
The total pressure inside the cylinder is, 6.7 atm
The mole fraction of N_2 in the mixture is, 0.52
Solution :
First we have to calculate the total pressure inside the cylinder.
According to the Dalton's law, the total pressure of the gas is equal to the sum of the partial pressure of the mixture of gasses.
P_T=p_{N_2}+p_{O_2}+p_{Ar}+p_{He}
Now put all the given values is expression, we get the total pressure inside the cylinder.
P_T=3.5+2.8+0.25+0.15=6.7atm
Now we have to calculate the mole fraction of N_2 in the mixture.
Formula used :
pN_2=XN_2 x P_T
where,
P_T = total pressure = 6.7 atm
pN_2 = partial pressure of nitrogen gas = 3.5 atm
XN_2 = mole fraction of nitrogen gas = ?
Now put all the given values in the above formula, we get
3.5atm=XN_2 x 6.7atm
XN_2=0.52
Therefore, the total pressure inside the cylinder is, 6.7 atm and the mole fraction of N_2 in the mixture is, 0.52
Hope it helps answer the question:)
Yes because it is a perfect conductor and all metals conduct heat.
