3 years ago

What causes a rearrangement of atoms?

Chemistry

1 answer:

AURORKA [14]3 years ago

4 0

Answer:

When a atom is unstable (It wants to gain or lose a valence electron)

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A large plate is fabricated from a steel alloy that has a plane strain fracture toughness of 89 MPa (81.00 ksi). If the plate is

likoan [24]

Explanation:

The given data is as follows.

$K_{k}$ = 89 MPa, $\sigma$ = 336 MPa

Y = 0.92

Now, we will calculate the length of critical interior flaw as follows.

$a_{c} = \frac{1}{\pi}(\frac{K_{k}}{\sigma Y})^{2}$

= $\frac{1}{\pi}(\frac{89}{336 \times 0.92})^{2}$

= $\frac{656.38}{3.14}$

= 209.04 mm

Thus, we can conclude that minimum length of a surface crack that will lead to fracture is 209.04 mm.

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3 years ago

Consider the formation of nitryl fluoride: 2NO2(g)+F2(g)⇌2NO2F(g) The reaction is first order in F2 and second order overall. Wh

Dahasolnce [82]

Answer:

Rate = $k[NO_{2}][F_{2}]$

Explanation:

Two reactants are present in this reaction which are $NO_{2}and F_{2}$
We know overall order of a reaction is summation of individual order with respect to reactants present in rate law equation.
Here, overall order of reaction is 2 including first order with respect to $F_{2}$
So, rate of reaction should also be first order with respect to another reactant i.e. first order with respect to $NO_{2}$
So, rate law: rate = $k[NO_{2}][F_{2}]$

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3 years ago

Celestial object A is composed of 92.1 percent hydrogen and 7.8 percent helium while celestial object B is made up of ice, froze

Andrew [12]

Answer:

star

Explanation:

stars are composed of 92.1 percent hydrogen and 7.8 percent helium.

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3 years ago

if you have a bf and he has a crush on another girl and that girl likes him to. is he cheating on you

olya-2409 [2.1K]

Answer:

techinically no. unless he does something with her. or kisses her. but i would break up with him if he doesn't like you/not interested. i am so sorry this is happening to you

Explanation:

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2 years ago

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A gas at 325 k has a volume of 4.0 L. If the gas’s volume changes to 2.0 L at constant pressure, what will be the new temperatur

inessss [21]

4/325 = 2/unknown temperature
unknown temperature= 2/(4/325)=162.5k

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3 years ago

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