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4 years ago

If this atom has a balanced charge, how many protons would you expect to find in this atom?

Chemistry

2 answers:

uranmaximum [27]4 years ago

6 0

The number of protons would be equivalent to the number of electrons if the net charge on the atom is 0.

Strike441 [17]4 years ago

3 0

Answer:

If you are in k12 then I think the answer you are looking for is 6

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Hydrogen is diffusing through solid nickel. At a temperature of 358 K, the diffusivity is 1.16 x 10-8 cm2/s. At a temperature of

Lelu [443]

Answer:

Q_d=35881 J/mol

So the activation energy is 35881 J/mol.

Explanation:

Consider the following equations:

$lnD_{1} =lnD_{o} -\frac{Q_{d} }{R*T_{1} }$

$lnD_{2} =lnD_{o} -\frac{Q_{d} }{R*T_{2} }$

Solving the above two equation to find the Q_d in term of diffusivity and temperature we will get:

$Q_{d}=-R*\frac{lnD_{1} -lnD_{2} }{\frac{1}{T_{1} }-\frac{1}{T_{2} } }$

where:

Q_d is the activation energy

D_1 is the diffusivity at T_1

D_2 is the diffusivity at T_2

$Q_{d}=-8.31*\frac{ln1.16*10^-12 -ln1.05*10^-11 }{\frac{1}{358 }-\frac{1}{438 } }$

Q_d=35881 J/mol

So the activation energy is 35881 J/mol.

3 0

4 years ago

What human made mechanisms are responsible for increasing the rate of global warming??

Natali [406]

Cars, aeroplanes, factories etc

6 0

3 years ago

ASAP PLEASE

Natasha2012 [34]

Answer:

Option A.) 2 ppm

Explanation:

60 particles in 30 million can be expressed as a fraction:

$\frac{60}{30million}$

And, dividing both numerator and denominator by 30, that can be simplified as:

$\frac{2}{1million}$

That means 2 particles of sulfur dioxide in 1 million particles of sample, which is 2 parts per million or 2 ppm, which is the option A.

8 0

4 years ago

Which two factors often determine the type of rock that is formed by a process?

Elanso [62]

The chemical composition of the magma and the rate at which it cools determine what rock forms. Igneous rocks can cool slowly beneath the surface or rapidly at the surface. These rocks are identified by their composition and texture.

Hope this help XD

4 0

3 years ago

Read 2 more answers

3.How many grams of lithium nitrate will be needed to

ZanzabumX [31]

Answer:

$m_{LiNO_3}=314gLiNO_3$

Explanation:

Hello!

In this case, for the given chemical reaction:

$Pb(SO_4 )_2, + 4 LiNO_3 \rightarrow Pb(NO_3)_4, + 2 Li_2 SO_4$

We can see a 4:2 mole ratio between lithium nitrate (68.946 g/mol) and lithium sulfate (109.94 g/mol); in such a way, via stoichiometry, the required mass of lithium nitrate to make 250 g of lithium sulfate turns out:

$m_{LiNO_3}=250gLi_2SO_4*\frac{1molLi_2SO_4}{109.94gLi_2SO_4} *\frac{4molLiNO_3}{2molLi_2SO_4} *\frac{68.946gLiNO_3}{1molLiNO_3}\\\\m_{LiNO_3}=314gLiNO_3$

Best regards!

4 0

3 years ago